Timing Question

"I keep adding advance, and it keeps pinging"

Everything you have described is too much total timing. Opening slots in the distributor adds timing. Huge initial timing number like 32 degrees only work with very limited timing in the distributor.

I will take your TDC verification at face value. So what is your total timing? This is easy to check, either with timing tape or an advance adjustable light.

Warm the engine up. Connect your timing light. Raise the engine rpm to 4000. What is the timing?

Total timing over 40 degrees is iffy.

Test for total timing, and post the number.

B.