Ultimate TBI?
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Junior Member
Joined: Sep 2008
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Ultimate TBI?
I am getting ready this week to do the ultimate tbi on my 1991 firebird with a 350 tbi. Does anyone out there know of what kind of gains i can expect from them? I already have a cat back exhaust and I am adding a new set of headers this week as well.
Last edited by iamnicoli; Mar 8, 2010 at 10:53 PM. Reason: Forgot to add something.
Supreme Member
Joined: Jun 2006
Posts: 2,199
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From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: Ultimate TBI?
This has been posted in many treads, the stock TB starts chocking at around 280fwhp https://www.thirdgen.org/forums/post...488-post2.html
In this case if your 350 is not making over 275FWHP and someone would swap your TB for a stock or ultimate modded one you would probably never notice.
On the other hand, you would notice if someone would play with your tune and fueling.
In this case if your 350 is not making over 275FWHP and someone would swap your TB for a stock or ultimate modded one you would probably never notice.
On the other hand, you would notice if someone would play with your tune and fueling.
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