The Stovebolt Site Forums The Parking Lot Big Bolts Dual-Reservoir Under-Floor Booster?

Hi! Has anyone installed a dual-reservoir,Drum-Drum power-booster under their "Big-Bolt"? My friend,Billy,(with the '59 Viking 60 bus),purchased one,but we're not sure if it will have enough "boost",for his 10,000 Lb.(E.W.),bus. Kind of an after-thought,I know,but he doesn't have a computer,and didn't really get an answer from the dealer. Any thoughts? THANKS!!