Small block question

bamech68 said

What should a decent built 318 built to a 390 stroker make for hp? I know there are a million variables but average. Performance heads and I believe a 750 or 850 Holly double pumper….. It will go on a dyno but not now. I bought it built so I’m curious, it revs fast and sounds awesome! Any thoughts would be appreciated, thanks

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Not enough info to hazard a guess, but here's a FACT: You're going to grenade your transmission if you don't sort out your kickdown linkage. The pictured adjustment is WAAAY off.
I'm willing to bet that throttle linkage isn't opening the carb all the way, either. The geometry looks off.
Just mentioning it for what it's worth; take it or leave it.