340 stroker 422

Miszny said

I don’t t care about gas mileage at all. Don’t see any other advantages…

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There are HUGE advantages to running vacuum advance. BUT, with where you are and what you are running I seriously doubt you can make it work.

The mechanical part of the vacuum advance mechanism will not respond quick enough to keep you out of tip in detonation.

If you play with it enough and get the right curve in the distributor you MIGHT be able to make it work.