Advance the timing until it pings slightly on the road under load. Recheck # 5 and # 7 plug wires for being in the right order(easy mistake to make).Other than that,if you can get a scope (like a Mac # ET-985 Cylinder Balance Analyzer) that will kill each cylinder to see which one is the problem child.
Wanted Good Woman:
Must be able to cook , clean , sew , tune engines and polish trucks. Must have old Stovebolt and garage. Please send picture of old Stovebolt and garage.
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