Holley Aluminum Ultra HP Gas Carburetor

Holley HP™ Carburetors have been the standard in racing four barrel carburetors for nearly two decades. So how do you make them better? You make them 38% lighter, increase the fuel capacity by 20% and add 30 other new features! They're available in an all–new Hard Core Gray™ hard coat anodized finish with Black™ billet for superior corrosion protection.  

Note: Fuel inlets are spaced 9.75" on center which will require a lengthened fuel line / fuel log arrangement. Fuel bowl inlets feature -8 AN O-ring port fittings to allow for a large variety of plumbing options. Fuel bowl can be plumbed from either side. 

Specs 

Aluminum Construction Saves 4.5 lbs - 38% 

Billet Aluminum Metering Blocks 

Fully adjustable (emulsion bleeds, power valve channel restrictors & idle feed restrictors) Power valve channel restrictors now machined lower in metering block for improved fuel delivery to power valve circuit 

Billet Aluminum Base Plates 

Stainless steel adjustable secondary link Provides choice of 1:1 or progressive secondary throttle actuation for ultimate control of secondary opening rate 

All New Fuel Bowl Design 20% more fuel capacity vs. a traditional v-bowl eliminates fuel starvation and provides consistent air/fuel ratios 

Updated Main Body Design Integrated idle bypass valve eliminates the need for holes in throttle plates and allows for proper adjustment of idle while maintaining correct throttle plate to transfer slot relationship Helps maintain good idle control when using radical camshafts