I was having the same issues with the same carb. i enden up with the 262 atomizer, w7 needle and #50 slide, 40 pilot, 96 main on a 74cc gila kit. Not that yours will tune in exactly the same but you have an idea. Then again iam still tunning and new to this so take it with a grain of salt.
Also check your timing i was having problems with my idle being rich and fouling the plug. it turned out my spark wasnt hot enough.