Hey guys, don't own a TPI car and know nothing abou tit yet, but am thinking about finding one. My question is, is there any difference between the 305 TPI stup and the 350 TPI setup? If I had a 305 TPI motor and swapped in a 350, would the injection work alright? Thanks for your help guys.

 

The only difference is the 305 has smaller injectors than the 350. To put a 350 in a 305 TPI I would get a 350 PROM and larger injectors or you could get a custom PROM burned for the 305 smaller injectors.

 

Very easy swap, you can even keep the injectors, just buy a AFPR and crank it up, or it will run lean. Stock chip will even work fine, the knock sensor and the spark control module are different as well for a 350. But you can still run the 305 stuff, it may see some false knock and retard the timing some due to the noisier 350. My car had all the 305 stuff when I got it and it ran fine, I've since changed to all 5.7 stuff (injectors/prom,knock/ESC) and I don't reallyy notice much, made 7 more RWHP on the dyno (before the heads and cam), no difference in idle.