Quote:
Originally Posted by Ackattack
...I put a 5.3L in my 68 and it is WAY WAY better. If you want to go fuel injection, I wouldn't waste my time with a TPI engine any more.
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I would agree with you. However, the TPI can sit on top of the original engine which has it's advantages. If you don't have the location, skills, or resources to do an LS swap, the TPI can go on an engine already in the truck and parts are available at most any parts store. Some people would be more comfortable with an intake swap that might not attempt a full-on LS conversion.
One more thing. If you do put TPI on an existing engine and want to use it in closed loop, you need a cam that has vaccum. TBI, TPI, and LT1 all require cams that produce vaccum or they will not run right with a stock computer setup.