Sorry for reviving an old thread.
Just wondering, i did a changes in the 10 & 20 load and 500,750,1000 rpm. I advanced it to 19.4, and the lope seems to be just the same.

So, we tried 10,20,30,40,50,60 load and 500,750,1000 rpm, set at 19.4 advance, and helll yeahh is like scobby! But my final setting is 10,20 load and 500,750,1000 rpm at 19.4, 30,40,50,60 load and 500,750,1000 rpm set at 16.4. Wish i could have the all point set at 19.4, but it just won't idle properly.