Whats wrong with this 440 combo?

go with the .528 solid cam 'purple shaft' if you are going the mopar route.

A 750 holley works with lil tuning effort, almost ootb even w/ h stall
A 830/850 makes more power but requires more attention/time in tuning the pump shot when used with 3000+ stall, no big if you're up to it.
Just have to increase the shooter to around 35-42 and start with red or pink cams and go from there.