I put in a TDC stop to help me find TDC, but I was able to rotate the assembly completely around and it never hit the stop. I had it all the way in, as far as it could go. Any suggestions on how else I can find Absolute TDC? Or should I just do it the old fashioned way and shove my thumb in #1 and bump it over till it pops out, stab the distributor and make sure the rotor is pointing to #1 and let it rip? My concerns are that I want to be able to apply the timing tape and have it correct for tuning issues. I plan to put a NOS Plate system on the motor and need to know the exact timing.