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Re: gas fouled or black spark plugs
Posted to Technical Theory Forum on 4/1/2018 1 Reply

Fitech works very well. Are you sure its 450hp? Has it been on a dyno? Big cams need compression, sounds like its way over cammed. I know Pontiacs pretty good and its not much of a feat to make 450HP with a 455, but a 347? Login to read more.

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