400+ hp questions Have a '90 K5 w/ 256,000 miles on original engine. About to do a rebuild. I would like to get 400+ hp out of it. I have looked at the ZZ383 from GM performance parts. For my induction I would like to buy a TPI setup off an older Corvette/Camaro complete w/ wiring harness and computer. The computer on my '90 K5 controls everything, even the speedometer. If I buy this TPI package would that computer run everything on my truck???? Would I just use the computer that's on my truck now?? How would this work??