Iv'e never seen a car run zero vacuum , not and run.
1 to 3 inches is the best i have ever seen personally.
Our data system doesn't actually read in inch's of hg , but in negative pressure , so, using the math formula after looking at our data as i stated i would, we rum 1.2 to 1.7 inches of vacuum , which, to be honest, is down in the area where the +/- of accuracy on the graphs and data gathering , its impossible for us to be anymore accurate that that.
I would love to try a 1400 on the car and see what that would do but, money is money.
