banshee guru needed for keihin 39mm carb jetting

[RadarRacing]

Just saw this and realize its a couple weeks old but 150 main is small for gas 39mm keihins. Thats approximate size for 35mm keihins. Since you said dgh needle , then they very well may be 39s but usually 39s are in the 165 to 175 mainjet size, CEL, 48 pilot as dgh needles are somewhat rich in some spots on many bikes.