My 517 C.I. six pack piump gas motor made over 600 HP to the flywheel and 545HP to the rear tires on a dyno jet chassis dyno here in Bend several years back,
The M/T 13x31x15 ET street bias tires would almost dead hook at 9.0 lbs. on 10 inch wide wheels on my old Duster on the street, 1/2 to 3 turns max weighing 3450 Lbs. total ready to race with 50.7 % weight on the front tires I raced it with all three sets of tires on the car, the bias plies 13x31x15 ET street tires where the slowest ET and MPH at the track and the 315x60x15 M/T ET Street Radials ET and MPH where almost identical to the 10.5x31x15 M/T drag race slicks, the car would cross the finish line at 6500 RPM at 134.+ MPH with the slicks and cross at 7000 RPM with the ET Street Radials at almost the same MPH and ET I never drove that car with slicks on the road so no input about that
I do like the M/T ET Street bias ply tires better on the street with decent HP compared to the M/T ET Street radials I used