Originally Posted By crankn101
Why not stock firewall?



Plenty of classes out there with that rule but where would it stop? stock frame rails, stock mounting points for front suspension. I don't think you want non track cars limited like that.

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