Setting Dwell

If you set the timing with a light, the timing is where it's at, regardless of dwell. However, if you were to now CHANGE the dwell/ point gap WITHOUT resetting the timing, it would be off. By the way, I would not set the thing at TDC even if that's what the sticker calls for. Bump the thing up to about 5BTC at least

"Back then" I never used to set single points by gauge, just "eyeball" them, then check the dwell ON THE STARTER. When I thought I had it close, then I'd put the cap back on, start the car, and recheck again. If it was OK, I'd set the timing

Both my sixpack and later my 340 had dual points, so they were a little different. Yup. I just HAD to fall into the trap of aftermarket CDI ignitions, there were a few back then. "Tiger" and another, at least one of 'em came in a kit. You could not get a tach to operate to save your - - -

In my '70RR which had the Rally dash, I installed a Jones/ Motrola mechanical drive tach behind the dash in the "clock" hole. Got that dist out of a hemi for 25 bucks!!!