340 motor pumping excess oil on right side

You are making the assumption there is too much oil there. How do you know that? You're guessing.

There is no way there is "too much" oil in the rocker box.

Again, it's either a ring seal issue or your PCV valve isn't up to the job.
when I remove the breather i see oil flowing over the baffle it also drips out of the breather so not like high oil levels but definetly high volume only 4 quarts in the motor reads fine on the dip stick