Innovative improvements to carburetors have kept them as a trusted source of fuel for performance cars for decades. While the basic technology of a carburetor hasn’t changed much, little details have gone a long way in improving performance and increasing the span of carburetor applications. If you’re looking for trusted technology mixed with new features for your next carburetor, Holley just packed a few additional features into their new Aluminum Ultra HP carburetor.

Official Release:

Holley Aluminum Ultra HP Carburetors

Bowling Green, KY–Holley Performance Products is proud to announce their new Aluminum Ultra HP Carburetors.

A total of 30 new features and upgrades have been engineered into the new Aluminum Ultra HP. Most notable are the all aluminum construction which makes them 38% lighter and totally redesigned fuel bowls that increase fuel capacity by 20%. The fuel bowls incorporate ten new features including internal baffling to help control fuel slosh; a fuel trough to direct fuel to the jets; and a fuel shelf which minimizes aeration and promotes more consistent metering.

The metering blocks and base plates are made from 6061T6 Billet Aluminum for improved durability and true gasket sealing. The metering blocks are fully adjustable and boast a total of six upgrades. The base plate received ten new enhancements including a dedicated race-only throttle lever; stainless steel adjustable secondary throttle link for your choice of 1:1 or progressive actuation; knurled (hand adjustable) primary and secondary curb idle screws; as well as dual bolt pattern mounting holes.

The main body steps it up with an integrated idle bypass valve that allows proper throttle plate adjustment when using radical Camshafts without drilling holes in the throttle plates. The air bleeds have been moved outward for a smoother transition of airflow into the venturii and contoured hex head squirter screws have been added for streamlined airflow as well.

They’re available in an all-new Hard Core Gray hard coat anodized finish with Black billet for superior corrosion protection. They’re also available in natural tumble-polished aluminum with your choice of Black or Red metering blocks and base plate. The Aluminum Ultra HP comes in 600, 650, 750, 850, and True 950 CFM.

For more information contact Holley Tech Service, 1801 Russellville Road, Bowling Green, KY 42101. Telephone 270-781-9741. For nearest dealer: 1-800-HOLLEY-1. Or visit them on the web at http://www.holley.com.

Highlights:

• Increased fuel capacity from redesigned fuel bowls
• 38% lighter than other carburetors
• Fully adjustable metering blocks
• Integrated idle bypass valve
• Come in two different finishes and a variety of sizes