Base timing on a stock 302

[Her69fastback 3]

Almost done with the Holley sniper set up. What’s the base timing? I have read  anywhere from 6 to 15. I usual do 12. What’s the best for this set up? The distributor is a Holley made for the sniper. I also have the Holley box to

[Mach1 Driver 560]

[aslanefe 333]

The values posted above are book values. Usually engines like more advance. I am running about 18 initial on my stock 1969 302. Are you controlling timing with Sniper? If so, adjustments are done via handheld or laptop. Start with value above, increase it 2 degrees, if not pinging, increase 2 more; keep increasing until it pings, then back of 2 degrees. After you find the initial your engine likes, then adjust the total by testing.

[Her69fastback 3]

Thank you I’ll try that