Holley Carb Vacuum Diagram
Holley products for gm s popular ls engine are dominating the ls scene as well.
Holley carb vacuum diagram. 111 primary metering body filler 112 vacuum tube plug 113 idle limiter cap 114 idle adjustment needle 115 idle adjustment needle seal 116 spark hole plu g 117 metering body vent baffle 118 primary metering jet 119 tube o ring assembly 120 primary metering body gasket 121 primary power valve assembly 122 primary power valve gasket. Holley parts page diagram. Vacuum secondary tuning. Now holley efi products power these cars and are dominating the performance world.
The 0 1850c carburetor is a 50 state emission legal replacement carburetors for 1965 69 v 8 applications. Full size view. The information in this manual covers carburetor models 0 80457sa 0 80458sa 0 1850c and 0 1850sa. Hg 85 indicates in.
Considerable mystery surrounds the tuning of the secondaries on a holley carb. For example the number 65 indicates that the valve will open when engine vacuum drops to in. This tunnel ram is set up with a pair of 0 1850 600 cfm holley vacuum secondary carbs. In fact it is not at all complex but it can be time consuming.
Full size view holley parts page diagram. We ve added holley s 2x4 quick change housing kit that includes small nipples on each lid that connect a. From replacement fuel bowls to power valves and jets and everything thing in between. Then invert the bowl and adjust the float level by turning the adjustment nut until the float is level.
Each holley power valve is stamped with a number to indicate its vacuum opening point. Holley parts page diagram. Holley parts page diagram. For most pictures the 0 80457sa carburetor equipped with electric choke is shown in the illustrations in this manual.
Tour through a typical holley vacuum secondary four barrel carburetor holley aa aa 1 parts page diagram.