Set the gap per manufacturers specification for the spark plug used on a 1975, and up, 250 motor with GM HEI. Which is .035. You don't need to fight every inch of the way on this. You don't have to guess or dream up another gap. It's .035, as you already know.
Don't mess with Mother Nature or Father Time. Move forward on this kind of minutiae.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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