Anybody running the '68 4 speed 340 cam?
If you use vac adv connected to man vac, you will surely increase vacuum. I would think that cam will want 25-30* at idle & you should get at least 2" more idle vacuum.
Scroll down to post #6: www.hotrodders.com/forum/vacuum-advance-hooked-up-directly-manifold-bad-47495.html
If you use vac adv connected to man vac, you will surely increase vacuum. I would think that cam will want 25-30* at idle & you should get at least 2" more idle vacuum.
Scroll down to post #6: www.hotrodders.com/forum/vacuum-advance-hooked-up-directly-manifold-bad-47495.html