Wow, thanks for all of the replies! It looks like I have some tuning to do. I called Comp, and they also said this cam should have way more vacuum than this. So the plate in the distributor will actually have a number on it as stated above? I have a box of distributors up in the crawlspace that I can search through. Can I use two factory stiff springs, or are those too strong? As far as the battery goes, it is a 6 month old group 27, and the starter is the longer factory style starter that was in my 11.2:1 360 in my Barracuda for a while. Im gonna go out and mess with that ignition timing and see what I can come up with