My car will not run right with the vacuum advance plugged into the passenger side port of my Edelbrock 750. It stops accelerating as soon as the mech. secondaries open. If I unplug the advance, it runs fine at all RPMs.

In addition, with the vacuum advance connected it has a dead spot right off idle where it will bog and eventually stall. I have the CC Magnum 280H cam and from what I read in the archives, maybe I ought to have it plugged into the manifold directly?

Thanks,