maybe the problem isnt the carb, maybe you have an air leak somewhere that is causing the engine to suck in air and run lean. What kind of head gasket are you using ? If your using a copper or a thin one you should have sprayed it with copper gasket spray or silicone spray and allowed it to dry...
would there be a problem if i put a 14cc head on a modified predator without the dowel pins and if i torqued down the cylinder bolts to 17-18 ft of torque?
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