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speed demon 850

  1. Engine
    Hi - I'm new to this board and need some advice. I have a 68 Camaro with a 396 and 4 Sp M21, Victor Junior intake, long headers / 2.5-in dual exhaust, Speed Demon 850 (mechanical secondaries), MSD 6A / Pro Billet 85551 (12* BTDC @ idle, 28* total advance), unknown details on the cam or...