I am running a fully sleeved motor b16a with darton sleeves a str racing intake and fuel rail with 750cc rc injectors with low compression 8.5:1 turbo pistons a toda racing t belt and oil pump moroso oil pan magnacore 10mm wires msd 6al digital box cap and blaster ss coil, a slightly ported head with oversized valves adj cam gears crower ti retainers and valve springs not sure which set tho with a gt42 turbo and should be seeing around 25-30psi i was wondering if it would be worth the money to invest in a set of cams or just run the stock si ones i am looking to make around 500-700 horsepower and any ideas on what clutch setup to run i will be using the car on the street once and a while and prob drive it to shows

 

Unless you go with aftermarket "boost" specific cams, the stock Si or even GSR cams will do well with forced induction. However, frome what you've posted, you're not going to be even close to 500 horse power. You need a lot more $$ and parts to hit those goals. Good luck.