i see a few different head mod specs,my sled loads up pretty bad on the bottom end, takes a bit of wide open to clean out,i noticed specs on a paper i got from the previos owner of my piupes to run 45-45-47.5 pilots and lean out the needles half shim on pto and middle, stock on mag,im running 47.5-47.5and 50 mag,needle in number 4 with 2 washers under and put my pto and mid back to 3 with both under,what are others running, im running the 160-160-162.5 mains also, i turned my fuel screw into 1 turn and it helped,cpr setting was 21/4 turns, weather is pretty warm right now though