What Holley carburetor do I have?
It’s like a “VIN” for your carburetor and should be hand-stamped on the front of the choke tower to the right of the vent tube on most typical Holley carbs. The list number typically is four to six digits long and may or may not have a suffix number behind it. The date code will be right below it.
What should the fuel pressure be on a Holley carburetor?
FUEL PRESSURE: This carburetor has been designed to work best at fuel pressures between 5 and 7 psi. Holley recommends 7 psi at idle, and a minimum 4 psi at engine redline. Three 8” fuel lines can result in adequate (indicated) fuel pressures, but restricted fuel flow.
Will too much fuel pressure to carb?
Fuel pressure to the carburetor will range from 4 psi to 7 psi, with some vehicles using higher pressure. Using the wrong fuel pump that delivers excess pressure can cause problems ranging from poor performance and lower gas mileage to flooding and carburetor damage.
How do I identify my Holley carburetor?
Using your carburetor number is the BEST way to get the proper carb kit. 99.9% of all carburetors have an identification number located on the carburetor. Some numbers are stamped directly into the carburetor, others used a tag attached to one of the carb body screws. How do I know what carburetor I have?
How to identify Holley carburetors?
carburetor. NOTE: Supercharged engines generally require carburetors with 40% to 50% more C.F.M. than normally aspirated engines. Holley offers a new line of supercharger carburetors. These carbs are identified by this logo: HOW TO SELECT THE RIGHT CARBURETOR SIZE AIR FLOW – Cubic Feet per Minute RPM AIR FLOW vs. ENGINE RPM with Various
How to ID a Holley carb?
Locate the Holley model number. After determining the carburetor is a Holley, look for the code numbers, usually located on the side of the air horn. The Holley model number is present along with the auto maker part number, if factory-issued, a date and application code. Locate the lone four-digit code.
Where are Holley carburetor ID numbers located?
Where Are Holley Carburetor ID Numbers Located? Holley carburetor identification numbers are typically stamped on the side of the airhorn. If the carburetor was factory issued, it may have multiple numbers, including the manufacturer’s part number, date and an application code. The only four-digit number is the Holley identification number.