Did anyone ever say whether these could be used on a 48 degree block. I was offered a deal on an old R block and assembly that is pretty hard to turn down.

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