Just bought a streetrod with a gen1 sbc. Car sat 20 years so i changed anything rubber,fuel pump water pump points and condenser. Set point dwell to 30. Timing is 3 deg btdc. I cant move the distributor at all ! I’ve been soaking it , tried warm engine, cold engine , nothing happening. I dont want to moose it because it runs half decent but not 100% Any suggestions ? Its cruisin season and i dont want to break anything till winter.