My 360 is set up exactly 16*in the plate 20* initial. I got greedy with the springs. It ran ok with the medium blue springs. I then did a light gray spring 1 blue spring it ran a lot better. Then I went with both light springs and I think I lost some of the seat of the pants pull. Probably go back to 1 medium and one light. No vacuum advance...total 36*. I tried the vacuum advance, I’m not good enough at tuning to have it function properly so I run without it.