John you are saying that it takes the same voltage to jump a .080 gap as it does a .035 gap? If so open your plugs to .080 and see how it runs with stock ignition. You are right that higher compression requires more spark voltage but so does gap. Have you ever run a modern MSD ignition on one of your engines? Does any of your inliners with total stock ignition get 20+ mpg at 70 mph?
Been there, Done that, Hope to live long enough to do it again.
Big Bill
I.I.# 4698
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