ok. kill .028 Emul .028 Mab .028 with float at mid window. I was able to check this on a 4150 on my 408 and boosters started up at 2800rpm steady free reving . I usually cruise at 3000rpm and thought I was on the booster at that,but not so. Looks like i'm cruising on the Mixture screws and T -Slots instead. Just trying to figure and tune all the circuits and want to fully understand each one. Tune is really coming around now and after a long cruise yesterday this 511 has put a big smile on my face. In a nut shell, it just wanted more fuel.