When I had a small 520 lift cam in my 408 I shifted at 6400 and ran low 10's. When I put the roller cam in it and my better set of Edelbrock heads I shifted at 6700 and ran 9.60's. When I built my 422 with a solid lift cam and ported 360-1 heads I've gone some high 9.40's shifting at 7000 rpm. Over the Winter I hope to upgrade to a roller cam and possibly a few more cubic inches

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