Thinking of running 39# Terminator injectors.

I've come across numerous "calculators" to determine the correct injector size.
One say they're too small and another says they'll provide more than enough fuel.

I figure I'll be looking at around 200hp/200tq @ 9.5psi.
Maybe lower, but doubtfully higher from other dyno graphs I've seen.
I'd like an injector that will support 250hp in case I decide to up the boost.

I guess the question would be does the stock Terminator injector support 500hp?
If not what does it max out at?
I figure I can just divide by 2 and get close to my answer.

Thanks!

Mark