Edelbrock Carburetor Vacuum Routing. Web edelbrock has found the following to be a good starting point for most performance applications requiring a 500 cfm carburetor: The stock steel fuel line must be modified to accommodate a rubber fuel hose as the stock steel line will not connect directly to the performer series carburetor.
Use large vacuum port at back of carb for brakes. The vacuum hoses were old and brittle so i threw them away. Large port in front for pcv.
This Is Typically Located On The Side Of The Carburetor Body And May Be Marked With A “V” Or “Va” Designation.
One is for the idle side with the other for main metering. Web #1 ok, i'm finally adding vacuum power brakes to the steed and thought i'd see if anybody has a better routing plan for vacuum lines: Now as far as my fuel line routing goes for this swap.
It Is The Bible Of Edelbrock Carbs And It's Free 2.) Learn The Basic Functions And Features Of The Edelbrock Carburetors Performer Series Carb Owners Manual #0034 Fuel Inlet For 3/8 Hose Electric Choke (Not Equipped On All Models) Metered Vacuum For Choke Cooling.
Fuel is drawn through the idle system (figure 2) by the intake manifold vacuum that is communicated at the idle screw port (8) and transfer slot (7). The carburetor metering was developed on edelbrock engine dynamometers, chassis rolls, and a variety of development vehicles. The carb on my car is a 500cfm weber version of the afb, and i couldn’t find a port (small diameter) on it that supplied manifold vacuum at idle.
Intake Manifold Reference Recommended Gasket 5420, 7520 Edelbrock #7203 Port:
Web first, check your carburetor’s port for vacuum advance. Web carburetor, determine if distributor vacuum advance port is “timed” (no vacuum present at idle) or “manifold vacuum”(vacuum present at idle), and use the matching vacuum port on your edelbrock carburetor (see figure 1). Web passenger side vacuum port on the new carburetor.
Use Large Vacuum Port At Back Of Carb For Brakes.
Consult factory manual or underhood vacuum diagram if necessary to determine Web there is a port on the back of the carb that runs to the brake booster. The stock steel fuel line must be modified to accommodate a rubber fuel hose as the stock steel line will not connect directly to the performer series carburetor.
So I Was Planning To Put The Tranny And Distributor Off The Carb And Put The Pcv Valve And Brake Boost To The Intake.
If you’re unsure where to find the port, consult your edelbrock carburetor’s manual or contact the manufacturer for guidance. #25 · sep 27, 2023. A typical 4150 and many 4500 carburetors use a two circuit system.