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According to Sean Murphy, our compu Q-jet's mixture solenoid can handle part-throttle operations, but some work is needed on the idle side. With our bigger heads and cam package, the computer can't cycle the mixture solenoid in an appropriate range to provide enough fuel. Enlarging the idle downtubes from 0.033 to 0.036 inch helps provide the needed fuel.
1984 Chevy Camaro - Power Struggle

According to Sean Murphy, our compu Q-jet's mixture solenoid can handle part-throttle operations, but some work is needed on the idle side. With our bigger heads and cam package, the computer can't cycle the mixture solenoid in an appropriate range to provide enough fuel. Enlarging the idle downtubes from 0.033 to 0.036 inch helps provide the needed fuel.  View Related Article

 

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