496 mag backfire help
09-24-2010, 08:47 PM
#11
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look at distributor cap
I had a similar problem and it turned out to be a white power like build up in the distributor cap. MSD tech guy said it can happen in a boat if the cap is completely sealed. I got new caps and drilled a couple of vent holes, no more problem.
.... A 496 does not have a Dist Cap....lol...
