Thread: Big Cam Really Low Vacuum?

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Originally Posted by skids72

Thanks, Erik... Yeah 800 is pretty low but it runs like a top there (albeit quite lumpy ). I certainly can crank the idle up a few hundred... otherwise, 5" can be considered "normal" with this cam? I'll measure again at a higher idle...

Thanks again,

Chris

Yes,I would say 5-7 would be the normal depending on where you have the cam installed.
That cam you have in there is really a "Pro-Street"/Strip cam.
I would think by 4,000 it really pulls very hard.