Pretty sure it was hemi Fred that posted the link showing how much a valve spring rotates in the pocket at different rpm's. I couldn't find the link but it is a good one to watch.


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