I messed around with it for a few days, ended up getting a new gasket kit. It's not perfect but it's way better than before and there's still some things to work on. Timing is ~18 initial, 28 total, no vacuum advance. Transition slots have about 0.030-0.035" exposed, the secondaries are just barely cracked. 6.5 PV, 11.5 in of vacuum in gear. 575-625 rpm in gear, 750-800 in neutral.
I took the car to an charity autocross this past weekend and ran it, and it did batter than I thought lol. Definitely lots of room for improvement in the handling/traction department (rev limiter was set a little conservative, not valve float. 3rd gear was a little too fast for those turns in my car):