I understand what ya got. I have a 11-1 - 360 248 duration @ .050 solid cam in a ‘73 - 4spd Cuda w/4.10’s w/275/60/15’s.
With tires like this, you walk it out of the hole and slowly depress the go pedal until the tires give. Then you know you over powered it and use a little less pedal next time until you find the rate the go pedal goes down until the tires have full traction under the max load they can handle.