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In this case, computer control doesn't eliminate the traditional Q-jet voodoo involving secondary metering rods and hangers. "There used to be about 40 rods," Murphy observes. "Now we're down to 10." Hole location on the hangers varies in 0.005-inch increments; raising the hole makes for a richer mixture that kicks in faster. Rods are lettered from B to V; we started with AU rods on an I hanger, as opposed to a stock CH on an M hanger
1984 Chevy Camaro - Power Struggle

 In this case, computer control doesn't eliminate the traditional Q-jet voodoo involving secondary metering rods and hangers. "There used to be about 40 rods," Murphy observes. "Now we're down to 10." Hole location on the hangers varies in 0.005-inch increments; raising the hole makes for a richer mixture that kicks in faster. Rods are lettered from B to V; we started with AU rods on an I hanger, as opposed to a stock CH on an M hanger  View Related Article

 

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