Blown 440 spark plug gap

.030 tops. Probably end up at .025 or maybe .028. I wouldn’t run less than a 7 box with what you have.

A magneto would probably be better.
You ever been hit by a mag? I have. Twice. Once in school fiddlin around with a friend's race car. Absolutely knocked my brains out. You'd thought I'd learned, but NOOOOOOO. I got one many years ago for my Ford 8N tractor. Found it at a local antique mall and just "HAD" to get it. It was a Wico Magneto. Put it on, got it running and it ran good. Only problem was it hit the hood a little and rattled while it was running. So I grabbed the hood to pull it away from the mag and "somehow" my arm touched the mag. I thought my elbows were gonna fall off. It really didn't fit that good, so I put the distributor back on it. LOL