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Re: 383 TBI buildup, lots of pics!
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Originally Posted by Fast305
The GMPP intake may seem like it has small runners, no suprise it does ...
The GMPP intake is very similar in design and size to the Edelbrock Performer 3704 TBI intake.
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Yep, it's not just similar in design, it's the same design. Edelbrock makes the GMPP intake for GM. I spoke to their tech line about this last year. It's equivilant to the Performer vortec manifold, but with the TBI provisions.
I do recommend the GMPP manifold for a 305 or even a mild 350, just because it's easy to plug-and-play. But since I'm building a 383 I chose the Performer RPM manifold. Its bigger ports are better for the increased air flow demands of larger displacement engines.
Just my $0.02...
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Ron
1996 Impala SS: 396 LT1, T56 six speed
1966 Impala SS convertible: 396 carb, four-on-the-floor.
1995 K1500: 383 TBI, vortec heads, Comp 502 cam, 50mm TB. AND STILL TRYING TO TUNE THIS @#$%^& THING! 
Last edited by ImpalaGuy; 10-16-2006 at 01:56 PM.
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