Be very careful on cutting the seats, I have hit water on stock 340 heads at .030 cut down realcrazy whiney
I don't cut them down any more except the inner step to get it level with the main spring seat for dual springs wrench
I use a old Craftsman 5/8 drill motor that turns real slow wrench

Last edited by Cab_Burge; 04/24/21 02:17 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)