So since I installed the 403, my Qjet was very lean at idle and part throttle. I am shocked it actually idled and drove so well. No bogs or hick ups at all. I went maybe a 1/4 turn on the idle mixture screws and one turn out on the APT. Much better no longer 15 to 16 at idle and no more 16 to 17 part throttle. Now 14's at idle and maybe 15 at part throttle. The full throttle AFR is still 11 to 11.5 even with the leaner AY secondary rods from the CV rods. I currently have a G hanger on there. I may try my V hanger, which should lean it out considerably. I will test and report back.