With a dwell meter. Adjusting the point gap changes the dwell angle. This adjustment is only required with older engines that still use points and condenser.
With points or mechanical-breaker style ignition, the air gap of the points is too wide. This is usually because of wear on the contacts or maladjustment.It's indicative of the amount of time the...
Setting dwell angel and setting point gap accomplish the same thing. On my 64-1/2 Mustang I have to remove the distributor cap and loosen the set screw on the points. Place a screw driver in the slot...