it could be but usually the timing marks are on the side of the fw see video
http://www.youtube.com/watch?v=ga1Cjymj6ms&feature=youtu.be
if you poke a sishkabob stick in the cyl you will feel it reach TDC as you rock the FW back and forth…. one set of points will be at the high point of the cam lobe.
if you are not choosing to use the VOM method or pointer just “feel” the TDC position of the piston with the stick and set the gap for .020.
Either way just going .020 at the high point of the cam is precise enough .
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