I ran a set of unbushed rockers on my 440 years ago with a 695 mushroom tapping cam for years. Strip only car but we raced 2-3 times a week.

1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time