Get a dial back timing light. Only time the engine for total advance. 36 degrees all in max. Using an initial timing setting is a disaster waiting to happen. You have no idea about possible mods to the distributor. Also, verify the outer ring on the balancer has not slipped. Easiest way I can think of is to take a known good balancer, pull your crank pulley off and carefully compare the keyway orientation to the 0 degree mark on both balancers. You can also figure it out using a degree wheel to locate TDC but that is a lot more work. Good luck.