Ok, I put just under a tank of fuel thru it 2day. Did the air screw @ just under 2 turns out. I think if I was looking for all out speed I'd use the 92.5 main with the needle C-clip on the 5th (bottom or 4th groove but with the 95 jet (I havent done needle height yet, so still in middle) it is just a shade rich, but its running cooller. I'll try with the needle on 2nd & 1st grooves tomorrow. I am definitely happy with results. Cheers