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350 TBI performance mods

Whats the best way to soup up an old tbi 350?

350 TBI performance mods

Postby chevyripper [OP] » Jan 25 2012, 6:40am

Hi, I have a 1992 silverado with a throttle body 350. All I have done to it is an aftermarket edelbrock intake manifold and I have removed the catalytic converter and installed a flowmaster muffler. I was wondering if any of you guys have modified engines like this and if so what would you suggest doing? I was thinking about camming it and possibly installing new heads along with headers. Any suggestions on what I should buy or what cam and heads are best for this engine? Thanks!
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Related Topics  350 TBI low idle   92 silverado 350 tbi power loss   1995 5.7L V8 TBI OHV 16V   Performance Module/Performance chip help!   5.3 vs 350 vortec   5.7 350 non vortec   5.7 350 96 model   Exhaust headers for 350   95 350 engine questions   92 c1500 350 had no power driving   Engine misfire 97 350 vortec.   1987 chevy 1500 5.7 350   Vortec 350-454 fuel economy   How to Install a Throttle Body Spacer - 1995 V8 350 
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Re: 350 TBI performance mods

Postby starspangled6.0 » Jan 25 2012, 6:51pm

I had a 97 Sierra, with the 5.7L (not exactly the same as yours, but close). It REALLY woke up with a CAI and Flowmaster cat-back system. It was a lot faster, and I upped the fuel economy 2 MPG. That was all I ever did to it- it had close to 300,000 miles on it, so I traded it in for my current ride.
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Re: 350 TBI performance mods

Postby SRMN8R » Jan 25 2012, 10:35pm

You can call Crane Cams, or Edlebrock, or one of the other manufacturers and they will work up a package for you. I had a pretty good idea what I wanted to accomplish with my 55 Chevy truck (400ci Chevy motor) and I called Crane. They designed a package for me that produced an estimated 410 ft/lbs of torque and 300 hp. I'm pretty sure they have a package for the TBI motor, and I think I priced it a number of years ago... but there are too many projects to remember the ones that didn't get built.
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Re: 350 TBI performance mods

Postby marshallsdad07 » Mar 02 2012, 3:48pm

The computers in the tbi trucks don't like a lot of changes. I own a 95 tbi 454 big cam, intake, large oval port heads, most all bolt ons and had computer probs until I installed an adjustable map sensor. http://www.fuelsaver-mpg.com/simple-map ... 6ae4e6def6 the parts you can get cheap at radio shack. After that skys the limit. Hope I helped.
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