Could i buy a TPI fuel injection system and change it out with a TBI on a 1991 camaro RS 5.0? And how hard is it? waht do i need to change to make it work? Thanks

 

Too many questions to be answered without knowing what you bought. There is a long list of items required for a TPI conversion and NOTHING from your TBI set- up compatible. A big and expensive job with poor results in most cases with a 305 TBI to start with..

 

You could make better numbers for the money with the TBI setup. Get yourself a high flow throttle body, flow matched injectors. a TBI to 4bbl adapter plate, and a decent dual plane carb intake. You'll be amazed how much power your L03 can make.