My 2 Cents.... Dont spin the pump over 6000 RPM'S..
My 2 cents on the Vacuum 12-14"
I prefer the 4 Vane Pump. But as long as the one you using will pull whatever vacuum setting you feel you need and it's working and your not having to rebuild the pump all the time. Run it... smile
But like I said. Thats just my point of view. smile

Last edited by racerhog; 03/07/19 07:36 PM.
Bob(Cowboy)Hogan
Monrovia So-Cal