Guess the hp/torque on street 589ci wedge

Hi guys, friend of mine recently bought this motor from a well known racer/builder etc. for a very good price. Going to run it in his street/strip '69 Roadrunner next year and should pick up 2 sec at least from what he ran this year, maybe a bit more, he's got a lot of driver learning to do!!, I'm gonna be there to help:rolleyes:
Anyhow here's the all the spec I know, not/enough but some.

Mega Block, 589ci, 4.500 stroke...4.5+bore?
Street Solid Roller .620" don't know dur. @.50, on a 112.
10:1CR, 572-13's probably stock?, Jesel rockers.
Indy 440-2 I think...dyno'd twice, once with an 850DP
and once with his own 950DP...dyno hdrs were prob 2"+
so unfortunately I don't have all the info you really need but have a go, see how close you can get with the limited info I've been given.

000hp/000ftlbs with 850DP?
000hp/000ftlbs with 950DP?....clue> made 1.9 vac@max rpm, was down a bit with this carb....personally I think it needs a 1050>1150 Dom.

?