How did you decide on how much of an adjustment to make, keep moving the rotor more until you were able to get the timing you wanted without breakup/power loss? I know you tried the msd rotor with no luck, care to share what the issues were?
After synching the distributor at 12, I rotated the crank slightly to 30. You’ll notice the rotor as way far from the terminal on the number one on the cap. Essentially, I moved the rotor closer to the terminal on the cap. It’s off to begin with and when the timing advances it’s firing the next cylinder.