Recent content by skyhawk77
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hey guys,I own a 77 skyhawk,231v6 from an 84 cutlass,390 holley.How far can I advance the timing...
hey guys,I own a 77 skyhawk,231v6 from an 84 cutlass,390 holley.How far can I advance the timing and what are the gains from it? possibly..- skyhawk77
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