Time to rebuild?
I fixed the choke pull-off (break) with a new piece of vacuum hose. I did the "pull it and cover with finger" test. It held vacuum but wasn't getting the vacuum signal until I replaced the hose. Now it works as advertised.
However, I have yet to resolve the blowby issue. I should have some time to work on it this weekend.
Cool deal, the fact that the engine stayed running & restarted w/the PCV out means the rings weren't toasted, maybe fuel-washed too many times. I have a 225 60ft. from where
I'm sitting that pumps 115-120psi & leak downs were abominable, the guy "just re-did the head", thing smoked like a freight train warm. If the rings are toasted & worn they can
act like a bad master cyl., if You stab it quick You've got a pedal, but gently pushed it goes right to the floor...no tension in them but "fluff" cranking quickly enough. On the intake
stroke it's the opposite, & the vacuum suffers, the crankcase & the intake are both filling the cyl...not good & it will stall immediately when You pull the PCV out of the VC.
Looks like You've got it running decent now, but as AJ said "for her age", the blow-by may improve if the over-fueling cold didn't do too much damage. Fact is, she's old & a
rebuild is probably the only way to eliminate that completely.