excessive 340 crankcase pressure

You're only showing the driver's side and there's a PCV in the cap. Is there a breather open to atmosphere on the passenger's side cover?
If the PCV is doing it's job, the pressure would not be forcing stuff out the dipstick tube. That's a symptom of ring sealing issues as noted. IMO - it's not a problem that will get any better.
Time to diagnose the engine's condition. Otherwise you're just trying to address a symptom and not the cause. And the cause may cause more problems for you as time goes on. Get a compression gage and test for cylinder compression. Engine should be hot and all plugs out for the test. If that does not indicate a specific hole with a problem, have someone do a cylinder leakdown on it.