5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
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Do you still have the converters on your car? you need to check and see if they've been clogged. check fuel pressure and timing make sure everything is where it should
91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85
85 mustang: rest in piece
Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
If you still have your emissions equipment your air pump might not be diverting TAB/TAD problem. Did you disconnect the vacuum lines when installing the headers? Is it running ok? not missing or blowing black smoke is it? plug wires on correct? Or a clogged convertor problem.
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