fox foxbody problems slow

  1. Bulletproof

    Help! '91 Fox

    My '91 foxbody hatch is suffering terribly from power loss below 3,000 RPMs and I can't buff this one out. The car has stock block 302, GT40 heads, stock headers, BBK decatted X pipe and straight pipes after, MSD distributor/plug wires, intake, stock manifold, E303 cam, it has not been tuned...