Thanks. I don't have a tach on the engine. I have an old tach and dwell meter I could use, but it only goes to 2500rpm.
I had been using the MSD chart and what it says. I will put a larger advance stop bushing in it. MSD does not say anything about tuning the vacuum advance pod, so if it is tuneable I would like to limit it as well..
I have a 160* thermostat in it also and it runs pretty cool. I will unhook the vacuum advance tomorrow before work and give it a whirl and see if it still pings.
Thanks