i just recently bought a complete tpi setup off of a 91 IROC camero... i had to buy a fuel pump and speedo conversion sensor.... this is a speed density setup... what kind of a cam should i use? i work at a chevy dealer... and one of the guys is going to help me with the swap from my carburator to the tuned port. but i have heard of some issues with cams. i'm running a freshly rebuilt 355, with 9.5:1 pistons and an RV cam. i'm not sure what the profile of the cam is, but would it be better to get a custom PROM to match my current steup, or get a cam that is closer to the IROC engine? also, this setup is off of a 305 camero... should i get the 350 injectors or what? thanks guys!! corey. BTW, this is for my 86 k5 with 3.08 gears.