Thank you very much for the info. Half the reason I am finally looking to upgrade is to become legal at least axle wise, so you might as well go the whole way. This racing gets very expensive.

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