Either buy another set of rims for a good set of bias ply slicks or mount them on the rims you have now, that will help the car a bunch on the line scope
It should dead hook and start breaking driveline parts work shruggy
4 speed cars are hell on parts until you figure out exactly which parts will live in your car shruggy

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)