Give it a try. The vac advance in my Swinger distributor is not adjustable and adds too much advance. I got some crappy gas when leaving Farmington last year and had to pull over and disconnect and plug the line with a golf tee. The tee is still there.
Damn, I didnt know that happened. I'll actually run with out it for awhile and see how it does. I had it hooked up, but figured I'd see if I could fine tune it further, hence my question. Thank you both for the info.