Engine Problem

You do have to maintain a points ignition, and with a hotter than factory coil, they may get out fairly quick. Do either of you own a dwell meter? That's the only way to really get things "dead on". Gapping gets you close, dwell gets you exactly where you want it. Also, if one set of points on a dual point gives up, you can disconnect it, and run on a single set to get home. In fact, when you set dual points, you set one at a time anyway. Also, dont forget, Dwell effects timing, timing doesnt affect dwell, so when you do get it set right, you'll need to verify the timing is what you wanted.