lt1,

This is all I'm saying:

-That having full vacuum advance at idle with a lower initial is not necessarily a good thing.

-That every technical article I've read tells me the same thing.

- That every performance car I've owned - granted, no Ford engines, just Pontiac and Chevy - worked best when connected to ported vacuum.

I don't disagree with you, it's just this has always worked for me. One thing we totally agree on is . . . "try it and see which works best."