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Y8 Hot Idle RPM (1968 Except Ram Air)

See chart below for specifications.  Back out idle mixture screws four turns (2-Bbl.), six turns (4-Bbl.) from lightly seated position. Adjust mixture screws and idle speed screw to obtain lean best carburetor setting at specified idle RPM.

Engine S.M. A.T.
350" V8 2-Bbl. 700/500 650/575
350" V8 4-Bbl. 850/650 650/500
400" V8 2-Bbl. 800/500 650/500
400" V8 4-Bbl. 850/650 650/500
Ram Air 1000/650 650/500
428" V8 4-Bbl.   650/500
S.M.  - Synchro-mesh Trans.
A.T.  - Automatic Trans.