REBUILT THERMOQUAD/ STOCK CARB . THE ELECTRICAL SIDE IS ALL NEW . IGNITION BOX/REBUILT ELECTRONICS IN DISTRIBUTOR / NEW WIRES / FRESK REBUILT MOTOR/ NEW COIL. NEW BALLISTOR. wHEN YOU RUN THE ENGINE AT 2000 RPM IT ACTS LIKE A COUPLE OF CYLINDERS ARNT FIRING. I TOOK A SPRAY BOTTLE AND SHOT FUEL OVER THE CARB AND IT SEEMED TO CURE THE PROBLEM . I ASSUME THE ELECTRICAL SIDE IS OK. I FEEL ITS A TIMMING ADVANCE OR CARB ISSUE . DOES ANY ONE HAVE ANY IDEAS