Autolite 4300

Autolite 4300 Float The Motorcraft 4300 float is a Nitrophyl type of float. These are solid floats but it is...

Accelerator Pump Stroke AdjustmentThe accelerator pump stroke has 3 possible adjustments depending on the ambient temperature.The center hole is for...

Float Level Adjustment There are 2 float adjustments, one for the main or primary valve and one for the auxiliary...

Do I run distributor vacuum advance from driver side of car port or on the passenger side port? As I...

1- Screw-Sec. Lockout Lever 28- Pump Air Bleed Valve 2- Lever-Sec. Lockout 29- Air Valve Spring Screw 3- Retainer Choke...

How the Idle Circuit WorksUsing the vacuum from the carburetor bore, fuel is brought up through the idle tube and...

CARB NUM CFM PRIMARY JET SECONDARY JET METERING ROD SIZE C7AF-AC .053 na na C7AF-AD .051 na na C7AF-AE .053...

The 4300 secondary’s are hooked mechanically to the primaries and open when the primaries are 3/4 open. Each of the...

4300 float – 15 grams 4350 float – 14.5 grams CARB NO FAST IDLE FLOAT LEVEL PRIM CHOKE PULL-DOWN FAST...