I hate the intake for that combo, I hate the convertor choice for that combo, did you check for total timing in the 32-36 range for a start. Did you check for proper preload on those non adjustable rockers.

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