67 Cuda: disappointing dyno numbers, need some advice!

I’d probably be inclined to leave it alone til the season is over.
Then pull it out and apart....... see what you have........ come up with a plan after you know what you’re working with.

Just looked up the new cam specs.
Fundamentally, it should be fine, but there will be some work required to the heads to facilitate the use of the correct springs.

Here’s a 9.8:1 360+.030, bowl ported 2.02 J heads, roller rockers, LD340, 750DP, 1-3/4” headers, small solid cam:

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