Blackwater, Panic; I followed both you hints, took the piston down 1.5" which equalled about 75 degrees in both directions and marked on the ring gear, about 35 teeth. Found the middle tooth and tada, TDC. My marked TDC on the old pully was off about 3 degrees. I am installing an HEI distributor with vacuum advance and I want to take advantage of every degree.
Thanks again
Warren
