i just put in a 355 to replace my 305 in my rs i have a vortec after market cam (87 blockbored 30 over ) worked over heads my old tib setup (maniflod ec.) headers tbi spacer cut off converter airpump gone and 80 series flowmaster muffler i want to buy a chip but i dont know if i have to get it custom made for my application could someone help and i was wondernig what kind of hp,tq im making if anyone could help with that im 18 so i could use a little help

 

i'm in the same boat with a 357....i just got a place fastchip. around $350 i'm told...i also heard jet does it but they're $500-$600 hope it helps