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Who's running 351 EFI? Could you post up what type of EFI, Harness, any aftermarket chips and which transmission you're using. Also anyone running a stroker kit in their 351 EFI? Thanks!!
Im running a 351 based block, stroked to 427, ported victor efi, 42lb injectors, pmas maf, with the mustang harness, a9l computer and moates quarterhorse. the best thing you can get when you start tweeking fi is a wideband, without it you are flirting with disaster.
Mild 351W, 69 head, truck lower, BC adapter, Mustang upper, Mustang Harness, 19 lb, stock Mustang TB & MAF and A9. Running a ZF tranny, may change to 4RW70. Intake syste with these heads totally dies above 4000 rpm.