Vacuum Secondary Conversion

That sounds like a good plan!
Do you think you would keep the factory heads, or upgrade at the time?
I tend to like AJ's build posts because he can run the numbers methodically and can tell what works with the current engine building goal posts. I wanted to find out if those goal post have been moved, and if so, how we can put numbers to it to quantify.
I have no immediate plans but at some point I’d like to see what I can get out of the magnum heads 1st and go from there, would like to pickup a roller 360 and zero deck with forged pistons. I want to keep the magnum short block stock, it barely has any miles on it.