I rebuilt mine. I took 0.080" off each cone in a lathe and then put it back together with two 0.040" shims. Been on the car like that for 5 years and still working fine.

1970 Road Runner 505 cid MCH CNC ported Stealth heads MP 528 camshaft 4 speed GV overdrive 11.98 @ 117 on street treads