Lets see, new points, plugs, condensor, rotor, cap, and wires. Stock intake non 180 degree, right? Weak spark and a lean mixture on one bank of an intake manifold split bank to bank could be your culprit all right. After everything you're replaced, without test gear, the first thing I'd do though is slap on a different coil, check the points to make sure you haven't burned them up running without a ballast resistor, replace the points if they need it, and add that ballast resistor. 16-18 thou sets you close on dwell. Sounds like it's time for a Mopar electronic distributor, maybe converted to HEI with the module from a mid 90s Chev PU.