How does this look?

DARTLARRY said

it wants more than 22 degrees at idle, more like 26 or 28. I have run as high as 40 degrees total with no pinging. I do agree on the curve needing slowed down, I can add stiffer springs. Carb is an Edelbrock AVS, heavier springs is the only change from stock.

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Then you have more cam timing than your compression wants.

In that case, you need to band aide it with vacuum advance and hook it to manifold vacuum so it will pull some timing at idle.

What you can’t do is mechanically cram a bunch of initial into it. If you do that you might as well lock it out and you still haven’t given the engine what it wants.

How much compression do you have and what is your seat to seat timing?