Use or don't use vacuum advance on distributor???????????????????

I went home last night and changed my initial timing to 16 and my final to 360 all in by 2500. I then checked my plugs and they were white so upped the jets. Front I changed to 64s from 62s and back to 66 from 62 and it made a huge difference. I will drive it a little today and then pull another plug and see what happens. I think I am going to just leave the vacuum advance unplugged and not mess with the distributer.