Oil burn cloud on engine deceleration

I have a similar problem with oil consumption and oil out the left pipe during deceleration. Stock 340 w/TQ only has 1500 since build. I am using AMD valve covers. Had block and heads done by machine shop but didn’t do the intake at the time (my mistake). Pulled the stock intake and found 7 head intake galleys wet with oil. Had the intake checked and needed to be machined (found warped). Thought that was the cure…NO.

Once reinstalled, it smoked even worse especially at idle. Closed off the PCV port and breather port; applied vacuum gauge to dipstick tube and found a light positive reading at idle. Today, I removed the PCV and plugged the carb port; the smoke disappeared. May have to run a breather system similar to a marine engine.

Hate to pull it and tear it down again, just may have too.