"Chances your geometry will be correct is near zero." BINGO! That has been my experience with most every engine I've built.

Thanks for the resource - can never know too much, and I always regard what I read on a Mopar specialist's site with more respect. Real-world experience always trumps academics or Brand-X generic info. It sounds like he subscribes to Jim Miller's "Mid-Lift" theory for rocker geometry. I read Miller's stuff a few years ago and he makes a compelling argument for the "1/2 lift" geometry. Sometimes it's tricky to get that with assorted parts and a shaft system, but it's what I try for.