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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.
i know that theres like a million of headers post but i cant find one that can help me! here is my problem... i have a 89 5.0 with an e 303 cam,ported/polished/multiangle,crane cams conical springs,1.6 scorpion rollers, cobra intake,70mm throthel, 71mm mas air, bbk cold air intake under dirve pulleys and made 251whp and 287wtq!! with unequal bbk 1 5/8shorties headersnow igot some headmand 1 1/2 LT headers will they give me more hp? or do i stay with the bbk ones?! ps:sorry for my spelling!