pushrod length/measuring question

Well there's plenty of proof a stealth head can make good power, I had a set of stealth heads before I bought the trickflows and used them in trade for my Dana 60. How much power are you looking to make by the way?
Oh nice. 600+ would be great.
Not sure how far out the TF 270s are, alot of parts are on backorder right now eh. Maybe I should just get these Stealths. And then get rockers and find an intake, hopefully. And pushrods of course. Ha!

-Shiny