I have built a big block Olds motor that would be capable of about 450 horse power, if I can get enough flow thru the throttle body.

I am using the 454 chev throttle body. it is equipped with a 4l80e overdrive trans that is controlled by the computer. It is installed in a 74 chev 4x4 that i use for towing.

With the configuration i have now it pulls pretty well off the line but runs out of steam pretty quickly due to not enough flow thru the small tbi. It would run much stronger with the quadrajet carb, but I love the easy starts and throttle response with fuel injection.

Does anyone make a 4 barrel tbi that would hook up to the GM wiring harness?