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tuning advice, a nd anyone know how much hp stock fuel pump is good for

Old 08-19-2010, 04:04 PM
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Year: 1993
Model: Cherokee
Engine: 4.0 Liter H.O.
Default tuning advice, a nd anyone know how much hp stock fuel pump is good for

Have a decent amount of mods, so the power is up a bit from stock. I put in the ford 19 pounders and appropriate fpr and the vehicle is running rich, so rich it sometimes backfires out exhaust. Can I tune it right with just a adjustable fpr and map adjuster, plus when I get around to installing head and cam and bigger injectors, can I just tune that with map adjuster and adjustable fpr? Also does anyone know how much hp stock fuel pump is good for?
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