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View Full Version : New Carbureted Sub Forum.



454ss
12-19-2009, 08:05 AM
We added a sub forum for all your carburetor questions.

94_c/1500
12-19-2009, 01:44 PM
good idea

04SilveradoMykk
12-19-2009, 04:36 PM
Sweet!

whitelightnin92
12-19-2009, 05:06 PM
nice!!!!

SimpleGreen
12-19-2009, 05:08 PM
About freakin' time :LOL:

04SilveradoMykk
12-19-2009, 05:20 PM
perhaps you guys would like to move this thread into the new section:

http://www.fullsizechevy.com/forums/general-discussion/performance/405113-mykks-carb-ignition-tuning-guide.html

xch3no2
12-19-2009, 05:58 PM
CoZy in here!

Justin_Inc
12-20-2009, 11:32 AM
Good stuff! Its nice to have a place to come and talk about how carbs dont work LOL

04SilveradoMykk
12-20-2009, 07:35 PM
^^yea ok, they don't work :whatever:

Justin_Inc
12-20-2009, 10:52 PM
^^yea ok, they don't work :whatever:

lol, what you didnt know that? It seems almost every hard core efi guy always comes up and tells me that Carbs are old technology and dont work. :cheer:

ER1C
12-20-2009, 11:07 PM
you dont dare talk about carbs in the tbi section they will run you out.

Justin_Inc
12-20-2009, 11:20 PM
I do it for fun :) lol

GreenMonster93
12-21-2009, 12:15 AM
I cant wait to get my carb!

sho_shane
12-21-2009, 07:00 AM
This makes me feel good. I asked for a carb sec and get one. This is the COOLEST site in the world.

350CHEVYROB
12-21-2009, 07:07 AM
you dont dare talk about carbs in the tbi section they will run you out.

:lol::teddy::LOL:

hillbillybowtie
12-21-2009, 07:19 AM
This is a great idea!

ER1C
12-21-2009, 10:02 AM
:lol::teddy::LOL:

lol

mudbuddy
12-21-2009, 11:14 AM
Good idea, is there any info in here?

04SilveradoMykk
12-21-2009, 12:34 PM
Good idea, is there any info in here?

There would be they would move my thread already!


perhaps you guys would like to move this thread into the new section:

http://www.fullsizechevy.com/forums/general-discussion/performance/405113-mykks-carb-ignition-tuning-guide.html

NEUMANNZZ
12-21-2009, 01:03 PM
Just when I wanted to forget about carbs, this forum adds a carb section.:lol:

silvermonte
12-21-2009, 09:52 PM
im sure after a bit of time this section will get a fair bit of use

xlt
12-22-2009, 03:46 AM
Alright, well I'll start with a question. Whats the best carb to purchase for a guy with limited knowledge of carb tuning?
I read and read about the q-jets and although highly tuneable, they can be very intimidating to a novice.
I watched a tutorial on the Edelbrock carbs and they seem to be relatively easy to deal with in comparison.
Alot of guys dont want to get crazy with a build, especially first time builders, but the enthusiasts always seem to jump onboard and confuse the crap of alot of guys that just need simple instruction.
So what about the guy with a stock 350 that just wants to tour around town and light em up once in awhile when the mood strikes him.
Any low maintenence and easily tuned setup ideas for this?
Obviously low end grunt is required and most used for this type cruiser?
Every time this comes up on one forum or another there seems to be the same requests, so maybe some carb guys can help out.
Must have a cam that gives a lopey idle, because we all know that just sounds too cool to ignore, and low rpm power, because a quick poke at the skinny should deliver that sweet sound of rubber and ashfault disagreeing. But we dont want to be stalling out at the lights from to much fuel pouring in, so the right carb is required and maybe even a stall converter.
So can a guy spend a weekend and under a thousand bucks to get alittle fun out of his truck?
If so, post up what you have for others to get a good start on the road to being broke and forever upgrading.
Atleast untill they have the confidence to to a major build all at once. Getting there is half the fun. :cheer:

04SilveradoMykk
12-22-2009, 08:48 AM
Personally, for the set 'em and leave 'em kind of carb guy. I'd suggest the Edelbrock, wich is why I think you find Edelbrock carbs on the weekend cruiser hot rods at the car shows. They don't make as much power as a Holley can. And the toughest part of an Edelbrock is understanding how the metering rods and Jets work together in order to tune them based off of the tuning chart in the owners manual.

Some guys take them out of the box, bolt them on, set the idle RPM and never touch them again.

When I had an edelbrock on my 350ci, it made a deent amount of tire spinning power. And on a road trip I managed to get 25mpg in my 4,380lb truck with 4.10:1 gears

Now that I'm using a Demon carb, it makes so much more power and the high rev's just scream. But it took alot of tuning to get it to run right and I've never gotten more than 14-18mpg out of it.

Justin_Inc
12-22-2009, 10:28 AM
Alright, well I'll start with a question. Whats the best carb to purchase for a guy with limited knowledge of carb tuning?
I read and read about the q-jets and although highly tuneable, they can be very intimidating to a novice.
I watched a tutorial on the Edelbrock carbs and they seem to be relatively easy to deal with in comparison.
Alot of guys dont want to get crazy with a build, especially first time builders, but the enthusiasts always seem to jump onboard and confuse the crap of alot of guys that just need simple instruction.
So what about the guy with a stock 350 that just wants to tour around town and light em up once in awhile when the mood strikes him.
Any low maintenence and easily tuned setup ideas for this?
Obviously low end grunt is required and most used for this type cruiser?
Every time this comes up on one forum or another there seems to be the same requests, so maybe some carb guys can help out.
Must have a cam that gives a lopey idle, because we all know that just sounds too cool to ignore, and low rpm power, because a quick poke at the skinny should deliver that sweet sound of rubber and ashfault disagreeing. But we dont want to be stalling out at the lights from to much fuel pouring in, so the right carb is required and maybe even a stall converter.
So can a guy spend a weekend and under a thousand bucks to get alittle fun out of his truck?
If so, post up what you have for others to get a good start on the road to being broke and forever upgrading.
Atleast untill they have the confidence to to a major build all at once. Getting there is half the fun. :cheer:

a Holley 4160 600cfm Vac Secondary carb, take it out of the box, install it and run it. They are amazing out of the box. :thumbup: Great mileage, good power and idiot proof.

94_c/1500
01-03-2010, 05:56 PM
a Holley 4160 600cfm Vac Secondary carb, take it out of the box, install it and run it. They are amazing out of the box. :thumbup: Great mileage, good power and idiot proof.

Good carb. I suggest buying one with adjustable floats.

GreaseDog
01-03-2010, 06:30 PM
a Holley 4160 600cfm Vac Secondary carb, take it out of the box, install it and run it. They are amazing out of the box. :thumbup: Great mileage, good power and idiot proof.

tweak it every time your neighbor farts, or the temp changes 2*...

get a QJet, and a good book on how they work and how to tune them. you'll be all set.

xlt
01-04-2010, 06:21 AM
I agree 100% that a Q-jet can be tuned to do just about anything, but I downloaded a book on tuning them for performance and gave myself a headache for 3 days.
Maybe it's easier than they make it sound, but wow.
Measuring all the different spring rates and doing wot runs with a vac line into the cab with a buddy watching a dummy carb for proper seating and the list went on and on.
I figured if I was to pay someone that really knew how to tune one, it would be cheaper to by a new Edelbrock. lol
It's def something I'm going to play with just for my own knowledge, but I sense there may be some shyte getting kicked around the yard.:cussing:

K Berg
01-04-2010, 07:29 AM
Quadra-slob any day!!! I got the original Q-jet on my 84 K5 Blazer that has NEVER NEEDED A TUNE! I don't have any problems with it and the only maintenance i've done to it in the 400,000 plus miles on it has been fuel filters. the only thing that bothers me is that when it is below 20 degrees i have to either put the defroster on to bump the high idle or I have to keep my foot on it a lil till its somewhat warm. I was going to replace it when i put the Goodwrench 350 in around 230k ago but ended up sticking with it. I can use the truck every day and it will start with 2 pumps or let it sit 6 months and give it 4 pumps.
To date, my 99 454 fuel infection has needed a fuel pressure regulator, all 8 injectors, while I was doing the injectors I noticed the fuel rail was cracked and the electric fuel pump i replaced with a Delphi had 2 bad pumps out of the box. My 96 Burb with the 5.7 spider injector... i don't even need to comment on how bad that system that is. guys with the smallblock trucks go through the difficulty of putting a marine multi-port intake on to eliminate the problems with those... TBI??? I would have liked it more if GM kept the Carburetor intake and replaced the carb with a Throttle body. TBI seems limited on what you can do with it. Spend half the amount on a carb and get years of reliability and service and be able to work on it without a computer or scanner (added cost). I highly doubt my Chevelle will ever see fuel injection.

Points and Condenser with a carburetor will always get you home

04SilveradoMykk
01-04-2010, 07:39 AM
The only issues I've had with my demon carb are my own doing. I took off the choke hardware, and with lower manifold vacuum of the cam. In this 18°,23°&35°temps we've been getting as of lately cold starts are a bit tough.

94_c/1500
01-04-2010, 01:18 PM
The only issues I've had with my demon carb are my own doing. I took off the choke hardware, and with lower manifold vacuum of the cam. In this 18°,23°&35°temps we've been getting as of lately cold starts are a bit tough.

I was surprised when my Scrambler started so easy in 15 degree weather after sitting for the last month. It has a Holley 4160 with an electric choke.
My J10 even started after sitting for 6 months. It toke a few minutes before I could drive it, but it started pretty fast. It has a Holley 2 barrel with a manual choke.

holeshot77
01-04-2010, 07:56 PM
Ya I just bought a mildly tuned sbc comes with a Holley not sure which one yet, I have a stage 2 SMI Q Jet should i replace the holley with the q jet or what???

K Berg
01-10-2010, 02:11 PM
I'd keep the Q-jet on the shelf until the Holley gave you more problems than its worth. I don't like running adapter plates, but swapping intakes adds to cost. A simple carb change turns into an intake swap, coolant change, intake gaskets go with it too. To change the intake you will most likely end up pulling the valve covers too... not a lot extra but it all snowballs

chevy_tx89
03-07-2010, 07:44 PM
ok soo im having some electrical problems with my 93 chevy 350 TBI i reallly really dont like fuel injected its too much problem dealing with tuning the comp to handle my cam and stuff ..soo im switchn to carb...my question is will a intake and carb bolt right up to the block??

04SilveradoMykk
03-08-2010, 06:23 AM
ok soo im having some electrical problems with my 93 chevy 350 TBI i reallly really dont like fuel injected its too much problem dealing with tuning the comp to handle my cam and stuff ..soo im switchn to carb...my question is will a intake and carb bolt right up to the block??

I'm not sure what you'd do to TBI computer to prevent codes/problems when running a carb... however, for the the intake swap be sure it's listed for 86-95 SBC heads. The center intake bolts are different than earlier years.