Hello all, I would be interested in feedback from the forum about how the timing marks are lining up on my 72 240.  I found TDC for piston 1 and the pointer is aiming "below" the first mark, see pic. My understanding is the lowest/first mark on the crank should line up with the pointer when cylinder 1 is TDC and 0 degree advance. i have a stock set-up and considering upgrading to electornic ignition module pertronix II. the distributor looks to be advanced about 1/2 way looking at the