Re: Wat's Clipper coupe

Posted by Packard Don On 2022/6/15 13:40:49

The issue with a positive ground car is the direction of the spark and the temperatures of the two surfaces from and to which it jumps. On positive ground cars, it has to work harder to bridge the gap and hence the narrower setting. I seem to recall that on my 1940 it was only .025” but I typically set it to no more than .028” if I wanted it to run smoothly under all circumstances.