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Re: gas fouled or black spark plugs
Posted to Technical Theory Forum on 3/26/2018 9 Replies

Thanks for all replies. I see what you all are pointing to on map running rich with low vacuum. Looks like port injection is my best bet. Engine started out with carb and has had black gas fouled plug from start on 375 HP engine blowed and went to 415 HP. carb... Login to read more.

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