[scooder]

Forgot to add, if raising the max timing makes no change to the power up top, go back to what you have now. It's worth having a play backing the max timing off and see what that does, you may find more power, may. Just remember we're playing with the max timing only here. If advancing it gives you a bunch down the bottom, it shows that you want more initial or all in timing earlier.
Have fun.
Martin.