Set the points to make certain they're not frozen. Confirm you're hooked up to cylinder No. 1 with the timing light. Lightly loosen the distributor clamp so that you can just barely turn it by hand. Start the vehicle and, with the timing light aimed at the bellhousing window, slightly rotate the distributor CW and CCW until you spot the ball. Be very careful to avoid any moving engine parts like the fan blade, pulleys, or fan belt. Keep your body, hands, and any loose clothing well around to the passenger side of the engine. Put something non-conductive over the battery like cardboard, etc. You've got to be somewhat close with the timing to get it to run well at all. Don't worry about the vacuum advance issue yet.
