when you get tired of that F1A... you need an F1X!
as stated in another thread, the F1X is waaaaayyyyy too big to be spun by a mod motor. I talked to John at procharger about the F2M coming back and he said that there are no plans to bring it back currently. bummer.
How did you check it that accurately?
the tensioner is stiff as hell, so I set it as far as I could against the belt. simple as that. musta worked cause I push 23.9 psi with a 8 rib belt and zero slip.