go .020 hp, set an hp goal and go from there. Also I recommend using OEM headgasket.
what psi u think will be safe i want like 20-25Cometics are over priced and basically the same as oem
You are correct. A large turbo will flow a lot more air at a certain psi than a small turbo will.One thing, your power level should not be based off of psi, but rather what kind of hp/whp u are shooting for. different turbos produce different power at different psi. someone with more turbo experience can chime in or correct me if i am wrong