383 needs more power

That should be a healthy power maker. IDK what others think, low .500’s is low lift IMO.

Honestly I thought it was the next smaller grind.
My bad, but still hold my stance.
First thing is first, tune tune tune.
Visit the track and get the distributor and carb dialed in and see what you get before and after. You might end up happy.

I agree with low lift, but overall, it's a sizeable camshaft for a stock stroke 383.