Understanding Vacuum Advance

Hi guys. When I bought the Newport years ago it had already had a stroked RB put in. And a little while later I’d noticed that was driving it with the distributor dash pot unplugged. Previous owner had jammed a bit into a vacuum line going to ported side of Edel. carb.
Car has always been a BLAST to drive.
Well after reading horror stories about washing down your cylinder walls with excess vapors, I hooked the dash pot back in. Yeah, it idles a little smoother, but boy is it tame above 50...

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Author: Shamu70