ANY BODY KNOW THE TOTAL ADVANCE FOR STOCK 502.32,34,OR???

depends on what fuel you want to run- Mine are not stock but I run 36 * and premium fuel.

91-92OCTANE.

If you have a 502 with a Thunderbolt IV ignition, factory is 32* total advance. Running 34* will be fine too. I doubt you'll see any real difference.
If you are talking about a newer EFI 502 with a TB V, tthen I'm not sure what total is. They do add timing differently than a TB IV. They work in conjunction with the knock meter and when any detonation is sensed, it retards the timing.

THE 502 ARE CARB MOTORS,THANKS FOR THE INFO,I HAVE THEM SET AT 34 TOTAL AT 3200 RPM.

Make sure you check it higher than 3200rpms. Some modules don't give full advance until 3600-4000.

ttt