sorry but the units that Advance and the other chain parts stores sell are not very good units.
You would be better off finding a good local repair facility to handle the job.


70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake

best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4