On your "break into the 10's" run can you remember what RPM you were trapping at with your new 29"slicks and 4.30's?Shift RPM?
I'm trying to decide which tire to run 28" or 30".(can't get a 29") I think it will mean a gear change to either 4.30 or 4.56, but I wanna keep my RPM under contol so taht piston speed in the 419 doesn't reach critical. Might go 30" then just try it with 3.91 to see how far I have to go on the gear change.:homework: