Swapped the 65 jet for a 58 and gave it another attempt.
It definitely wasn't 4 stroking like before, but I couldn't get it to stay alive for more than a couple seconds. Sounds like its starved for fuel. Can't even keep it running with throttle anymore. It didn't run as long, but the time it was running it sounded much more solid.
I'm going to bite to bullet and invest some cash into jets.