On my 1970 small block duster with the 1 7/8 headers Matt and I BOTH had to modify our headers with a 4 pound hammer. Today and tomorrow I will be re-routing the 2 tubes so I can get my engine diaper on.

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