Originally Posted by beast18gsr
i dont have the stock valves in the motor i got skunk 2 high compression. and i am gonna upgrade to ethier skunk 2 stage 2 or pro series 1 cams. And i would like to run pump gas and also thier might be a possiblity for NOS but one questoin how do i check clearance from valves to pistons
You have to clay the motor in a completely tedious process explained here:
http://www.c-speedracing.com/howto/claymotor/clay.php
But I think with the cams and the compression you plan on running, claying the motor won't be necessary.