[RedBarchetta]

You can fabricate a piston stop using an old spark plug that you drill out, tap and insert a bolt into. Comp Cams sells a custom crank snout socket for turning the motor with a long ratchet/torque bar, and with a degree wheel that fits on the end will come in (total) around $55-60. You can then fashion a pointer from a coat hanger and then it's just a matter of figuring out TDC from there. Then readjust the wheel and re-check. Are you installing it straight up or advancing 4* to allow for chain stretch? Comp Cams machines many of their cams with the built-in 4* advance for this purpose (or at least they used to...it's been a while since I did this). You may want to give Keith Craft a call to determine his recommended configuration for the cam that you have.

-Dean