Hmm...a simple adjustable T-shaped gauge. Sounds so simple I couldn't screw it up TOO badly..and if I do...hell, the'r estock 302 heads, I could probably get people to pay me to pick up the old heavy things for them.
Any tips or tricks you found while porting yours?
And best of luck with them, I'd love to see what kinds of numbers they make if it ever becomes public knowledge.