Figuring out how much heads have been cut?

They make gauges to do this.

BHJProducts.com, High Performance Engine Builder Tooling and Harmonic Dampers: +1 (510)797-6780

Intake Angle Gauges [IAG-XX] : BHJProducts.com, High Performance Engine Builder Tooling and Harmonic Dampers: +1 (510)797-6780