1976 Dart Overheating and other issues
Ignore the 2* BTC and try 6-10*. It's pretty much SOP for slant owners.
That may work well for a non-smogged 60s 225 slant six. And it might be a good starting point for a mystery distributor on a mucked with car.
When using the original distributor on the original engine, its setup to advance off idle to the correct timing for the engine.
Without any further information, 2* plus minus 2* at 750 rpm (plus minus 100 rpm) is a good starting point.
I think OSAC is gone in '76. If not, and the owner is wishes to experiment, that would be the first timing change to make.
Before making any change, it is critical to measure what the timing
and rpm are at slowest idle it will run, and at 750 rpm.
Making changes without a baseline too often reuslts in chasing your tail. Been there, done that. Hate to see a new guys make the same mistake.
