FSC Forum - View Single Post - Common performance-minded FAQs about 88-98 OBS trucks

hunt4240dw · 04-11-2008, 12:00 PM

I am new to this Forum. But it is awesome! I have a 99 Tahoe 4x4 with 5.7, 3.42. Fram Air Hog, Flowmaster 50 SUV, and a custom tune from MGS Custom. All in all, I think I have gained 60 HP on 91 octane tune. I am thinking of adding Edelbrock Headers to add HP/TQ.
How should should I expect?
I tow a 6400# travel Trailer. I am getting 11 mpg in 3rd but would like to stay out of the throttle a little more. I have a ScanGauge II to monitor my engine preformance.

David

04-11-2008, 12:00 PM	#28
hunt4240dw Registered User Status: Offline Join Date: Apr 2008 Member ID: 87346 Pics: My Gallery Location: Bartlett, TN Age: 54 Posts: 1	Re: Common performance-minded FAQs about 88-98 OBS trucks I am new to this Forum. But it is awesome! I have a 99 Tahoe 4x4 with 5.7, 3.42. Fram Air Hog, Flowmaster 50 SUV, and a custom tune from MGS Custom. All in all, I think I have gained 60 HP on 91 octane tune. I am thinking of adding Edelbrock Headers to add HP/TQ. How should should I expect? I tow a 6400# travel Trailer. I am getting 11 mpg in 3rd but would like to stay out of the throttle a little more. I have a ScanGauge II to monitor my engine preformance. David