How much HP from SBM ProComps? Well... 670HP!

with 9 x 28 tires...I would not go more then 4.56 gears...

you 60 fts are not very good....but the mph shows you should run in the 10.70s....

and with 670 HP....you would expect more mph in the traps....

but ....you went down the track...and nothing broke which is always the good thing...

it takes time to sort out a new combo...