With using that limiting plate, will the stock timing curve be acceptable (although maybe not ideal) for a 10psi Slant 6? I’m not at all shooting to squeeze every last HP out of it. Also- I already have HEI ignition.
I doubt you will have an issue. Those engines are low compression and the head isn’t very efficient. It will work well. Not sure if the limiter plate will work on anything other than a Chrysler distributor.