Constant or Ported Vacuum Source for Distributors? ...AGAIN!

yellow rose said

Exactly 100% FACT. If the build has any balls you will find the vacuum can can't keep up. Then, as you say it will rattle it's brains out every time you touch the throttle under load.

I guess I'm stupid because I can run 11:1 on pump gas and not have it rattle. And I don't have vacuum advance.

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Two things... i cant keep my foot out of it long enough for a vac adv to make a diff anyhow... and the other is already get about 15 mpg highway. I mean...Its efficient enough for what it is and what's inside it. Cranked 188 last check, got a 104 int . It'll get it on.
I could run 87 octane in mine, if i never go over stomp it or wind it high... but it's nice to be able to drive 4 miles away for 100 octane at the pump and bump the timing up for street or track brutality. Theres always a lil more for later.