Yeah that motor isn't going to like 10 degrees initial... and the rule is always -- the most initial advance you can get without having the starter motor struggle too much or you get engine kickback...
Stock baby cam no compression motors in Buicks idle at 10*'s....
If you ran the black bushing --- that's 18*'s... so you'd end up with 16* initial and that motor can handle 16* initial easy....
You're probably idling around 900+ RPMS is my guess...
I think the Mustang is up around 1200+ and then it barely idles... Sounds like a thrashing machine.
In the old drag race days we'd run a lockout and just dial in the total timing and lock the distributor... then we'd add a coil cut off switch so we could spin the motor around without any spark until she was spinning good - then hit the switch and WHAM! She's fire off good! LOL ---- You need one of those set ups!!
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