When you put a powerglide behind a Mopar engine it’s never a bolt it on and go situation. Every setup is different and has to be setup for proper engagement. Some I had to cut the nose off, some needed a 1/2 inch shim, and some needed 1/8.

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