This page lists Holley carb specifications, stock jetting and tuning tips. HOLLEY 4 BARREL CARB LIST NUMBERS AND STOCK JETTING. THE FOLLOWING IS A PARTIAL LIST OF HOLLEY LIST #'S FOR SOME OF THEIR MOST POPULAR CARBS. Plate 134-9 6.5 4160 1850-3 600 (F)66,(R)plate 134-9 6.5 4160 1850-4 600 (F)66,(R).
The dimension of the jets within your HoIley carburetor will control the movement of fuel from the gasoline bowl to the combustion holding chamber. Holley aircraft vary in size from 40 to 99, with the stock jet dimension differing based on the carburetor model and engine application. Holley produces each carburetor with a place of aircraft that will enable the carburetor to execute properly at ocean degree and around 70 degree air heat range. To compute the proper jet size for your vehicle, you'll want to understand your elevation and outdoors heat range.
Stage 1
Establish the height and temp the carburetor will become working within.
Step 2
Establish the present jet dimension of the aircraft within the HoIley carburétor.
Adjust thé jets one dimension for every 2,000 foot change in elevation or for every 35 education shift in heat. For instance, your present elevation is usually 2,000 foot above ocean degree with a heat range of 70 levels. You can compute that the jets should be enhanced by specifically one size. If the automobile will be controlled at ocean degree, but the heat is certainly 35 levels, you'll need to reduce the dimension of the jets by 1 dimension, as indicated by the stamps on the head of the plane.
Suggestion
- Each plane is stamped with its dimension, so adjustments can end up being made without testing.
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The size of the jets within your HoIley carburetor will manage the stream of gas from the gas bowl to the combustion holding chamber. Holley aircraft vary in size from 40 to 99, with the stock jet size differing structured on the carburetor model and engine software. Holley makes each carburetor with a place of aircraft that will permit the carburetor to perform well at ocean level and around 70 education air temperature. To calculate the proper jet size for your vehicle, you'll want to understand your elevation and outside temperature.
Step 1
Establish the height and heat range the carburetor will end up being working within.
Step 2
Establish the present jet size of the jets within the HoIley carburétor.
Adjust thé aircraft one size for every 2,000 feet modification in elevation or for every 35 education transformation in heat. For example, your current elevation is 2,000 foot above sea degree with a temperature of 70 levels. You can calculate that the jets should be enhanced by precisely one size. If the automobile will end up being operated at sea level, but the temp will be 35 levels, you'll need to reduce the size of the jets by 1 size, as indicated by the stamps on the mind of the aircraft.
Tip
- Each jet is rubber-stamped with its dimension, so adjustments can become produced without measuring.
- Hemera Technologies/AbleStock.com/Getty Images