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Cold (Fast) Idle Rpm

Set with fast idle screw (2-Bpl.), cam follower (4-Bbl.), on low step of fast idle cam and against shoulder of next step. 

2-Bpl. 900 RPM
4-Bbl. 700 RPM
AUTOMATIC CHOKE SETTING

425 2-Bpl. 1 Lean
Other 2-Bpl. Index
Ail 4-Bbl. (1)
(1) See "Rochester 4MV Carburetors".
FUEL PUMP PRESSURE

All 7 3/4-9 lbs.