I would scrap the loadamatic carb & distributor & install a DS11 with a MSD6-AL & a MSD Blaster 2-3 coil with spiral wound plug wires. Or go with an HEI module or a HEI distributor. All of the above require a full 12V to the coil or distributor.
You need to run an A/F test to see if your carb is pig rich??
The rich A/F mixture may have washed the cylinder walls.
The oil rings in those cylinders may be frozen in the ring lands of the pistons. Best of luck.
