To adjust the points on a '76 308, the shop manual says: Make sure that the opening angle of R1 breaker points is 56 deg. + or - 3, and the closing angle is 34 deg. + or - 3. What does that mean? Can I just simply print a compass diagram onto a piece of paper, like the one attached here: cut it out like a donut, glue it to face of the distributor, making sure that zero is on the TDC mark, and adjust the points to close at 34' and open at 56'? I did just that and there's no way to adjust the points to open and close at those points along the compass. The closest I got was close = 48 degrees and open = 84 degrees. Or is it possible that I'm not even close with this technique and the text in the manual refers to something else entirely? Or could it be that I've got single-point distributors and the adjustments are different than shown in the manual which refers to dual-point distributors. I installed new points. Could my distribitor shaft be worn? Something's wrong. ???