Agreed on the accuracy of the piston stop. Agreed on the vague TDC measurement with a dial indicator, but only if you try to use the dial to try to stop at TDC. Due to the dwell. But if you use the dial indicator in the same manner as a piston stop, measuring .200 before and .200 after TDC, marking the damper at each and finding the center, if think the dial indicator method is accurate.

Molnar crank and ATI damper cab.

Surprised to find the old cover that far off, but it is what it is. I guess the tolerances could stack up. I was having a blowby issue and thought it may have to much timing on this 12.5:1 511, so backing the timing down from 36 to 34 seemed to help, but the 34 was really 30* as i now know. Seat of the pants it ran no different, actually thought it ran better, but with less vacuum. So, will see how this all pans out once driving season comes back around and keep an eye on the plugs.