Rick,
You were almost spot on the money.
Using the intercooled race gas trick, program says that it only needs 13psi of boost to achieve 607hp even in Aug Bonneville air.
This info was derived before I got you last email about the intake flow. I will adjust and try again. The numbers will be worst and will take more boost to achieve the same result.
Okay, computer says it will take 15.5psi to get over 600hp with new intake flow numbers.
Do you already have those 7:1 pistons?