Manifold Vacuum Experiment

CFD244 said

That's what I wanted to see. I was not sure if there was a point somewhere during throttle operation that the two vacuum signals equalized....But it sound like it happens as soon as the throttle is cracked......Thanks for the reply.

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You can see the point where ported vacuum starts (Door opens) with a single vacuum gauge hooked to the port on your engine in the shop or put your finger over the port and feel it. Don't take my word for it. Often I'm wrong and or intentionally mislead people.