GM HEI

The numbers are advance.

Im guessing the inside are shot and wobbling all to hell. This car has 8-25 degrees of advance at idle and i stopped pushing the throttle at 3,500 RPM at 49 degrees with iron heads.

I figured i should back down.

And i hate GM HEI ignitions. They never work right and have unstable timing.

Like crazy unstable timing. Say 8 to 25 at idle.