I have a MAFT setup and am using the zeitronix wb. the maft instructions say to get the vf reading to 2.5 but I cant seem to get to stay above 1. From what I have read 0=lean and 5=rich. Does any one have any experience with tuning using the vf? My a/f's are between 14 and 15 at cruise and when I boost to about 2 o3 psi it starts to drop around 11. So according to the vf I am still running lean I dont understand what is going on.