That's kind of a tough question because I'm in transition. I want to go through my 340 this winter so I have options. The builds will be between 450 and 500 horsepower with about the same torque. Gear ratios 391 tire size is 26 in 275 50 15 drag radials, 4 speed car , clutch rated for 450 horsepower, drive shaft rated for 500 horsepower, 741 , 8.75, new 6 leaf spring packs, solid motor mounts.
