Ultra XP850 Almost there!

it's starting to make sense to me. Except the Power valve stuff. At idle 1150RPM i'm only making 11 inches of vacuum. I have no idea where it is at cruise. Maybe I'll pick up a long piece of hose and bring the gauge in the car to check that.

Also, I'm usually over 2500 at cruise. 4.30 gears. I know 60 MPH is around 3100 RPM.

Anxious to try the smaller MAB's. Have to order those. Have 31's all the way up to 40.