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    Fast XFI and Backfiring

    This isn't on a turbo buick, but on a single turbo 93 LT1 car, opti and all. I was recommended to ask here from LS1Tech because of the amount of knowledge and number of XFI familiar people here. I must say that after browsing I'm quite impressed. Anyway, I've got a fresh motor (383 stroker)...
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