As Mad said above your dyno test was pretty much meaningless. Add to that what works on the dyno may not work on the track and there is a possibility of a happy dyno giving bogus numbers. Dyno is best used to compare changes instead of predicting on track performance.

Need more Info.

What engine? SB, BB, C.I.?
Compression test PSI?
Intake Manifold type?

Solid or Hydraulic cam?
Lift? Lobe Separation Angle (LSA)?, Intake lobe centerline (ICL)? Was it degreed?

Manual or Auto trans? If Auto, what converter? what valve body?
Gear Ratio? Tire diameter?

Manual advance curve - Advance at Idle and Total? rpm at total advance, If you have vacuum advance is it connected to ported or manifold vacuum?

My guess is that several of the above are mismatched. Prime Example: Most cams that big will hate exhaust manifolds and love more gear, more stall speed, more compression and more initial ignition timing than what smaller cams require.