I should add about the misfire...
...when it misfires, usually past 4800 RPM or so, my tach drops out and loses signal. Not completely, but just about. Going by memory, it kinda drops down and flutters around 2k-3k once I get above 5k.
All ignition components except the power stage and crank angle sensor are ~2 months new: cap, rotor, plugs, wires, MSD Blaster 2 coil, MSD 6A. I am not using a tach adapter as I didn't lose my tach when I installed the MSD. I am not using the double coil setup either.
If you have any ideas, LMK! gsellstr already suggested checking the CAS and power stage, as those sound like the most likely culprits to interfere with the tach. Any other ideas, LMK. I would love to get a good run at full steam!