392 Hemi info

This is a subject I know NOTHING about. I may have the opportunity to buy the old 392 complete motor, no idea if it runs, but it's got a dual quad set up blah blah blah. How are these as far as performance go? I know it's not a 426 at all, but I have a somewhat put together 340 that's dyno'd 439 horse at the crank that was going to see Dart duty, but if I can get a good enough deal on the 392, would it be worth slapping in? Aftermarket cam, headwork, rotating assembly etc.???

Thanks in advance,
Dustin