low compression
Seems like this same debate keeps coming up. I would use a 440 for the cubes. To keep costs down (that is the idea right?) I would look for some 383 heads with closed chambers to try and raise the comp. as much as I could. See if the heads could be cleaned up without going crazy on them. Use a flat hyd cam with Rhodes lifters, maybe a Comp Cams 292 Magnum for example, use a performer RPM or a Torker II with 750 to 850 carb. Freshen up the short block of course. Its not going to make huge power but I'd estimate maybe up tp 450 hp. I've posted before that I did things like this with GM engines and got decent results but I'm still new to Mopar so I havent tried it. Remeber though engines like this usually don't last.