If it was mine, I would get compression in the 9.5 range, run this cam,
Magnum Muscle 222/226 Hydraulic Flat Cam for Chrysler 383-440 a good hot ignition curve, some HP manifolds or headers, Eddy RPM intake, 750 DP and hold on. Save the money for the fancy rockers and use it on something else. They don't add power.
