yeah they are standard comp pistons did want low comp ones but the company that i was goin to get them from messed me around so had to go the spacer route ... hay ho neva mind still does the job
stright 12 psi with no intercooler what bhp/torque are you expecting Tony ? well im hoping for 300 - 320 bhp and torque to match but prob lower like maybe 280 ish
same as wot craig has said if u only had plain water in it over the winter its prob frozzen and the cracked some thing could have buggered ur block and or head