no, I haven't run it yet with a vacuum gauge cause I don't have one, but I'm going to get one. Some things are still a little sketchy, like if I'm on the throttle real hard and then have to shift I sometimes get a pop out the exhaust. After taking all the plugs out last night I see that they are looking lean, which I don't understand because when I was warming it up before doing the test it was burning my eyes.