How do I identify a Carter carburetor?

The Carter AFB carburetors are roll stamped with an identification marking at the right front base of the carburetor’s mounting ear. The top line of the roll stamp identification has the carburetor identification number.

How many CFM is a ThermoQuad?

Wide-open, the “small” TQ was rated at 800 cfm, while the larger unit spec’d at 850 cfm, blowing away the airflow capacity of any previous OEM Mopar four-barrel. While the ThermoQuad certainly had the flow to support big power, the timing of events curbed its chance at glory as a high performance carb.

What kind of carburetor does a Carter ThermoQuad have?

The Carter Thermo-Quad is a four-barrel carburetor with a spread bore throttle bore configuration. It was designed as an emissions capable carburetor that retained or surpassed secondary throttle performance of earlier Carter carburetors, while delivering superior primary fuel economy.

When did the Carter ThermoQuad come out?

The Carter ThermoQuad carburetor is an American designed and built carburetor, and was original equipment on many American Chrysler V8 vehicles built during the 1970s. It was fitted to Australian manufactured Ford vehicles fitted with V8 gasoline engines built between 1977 and 1982.

Where do you find the Carter carb ID?

Carb Identification Carter YF YFA Full Size View Parts Page YF Diagram YFA Diagram Full Size View C1-BBS Parts Page Diagram Full Size View C2-BBD Parts Page Diagram Thermoquad Parts Page Diagram Edelbrock Stamped on bottom Flang Carter Stamped on bottom Flang

What are the throttle bores on a Carter Thermo Quad?

The Thermo-Quad was available with two primary throttle bore sizes, 1-3/8″ and 1-1/2″. Flow ratings (CFM) vary depending on the source, but the TQs with the 1-3/8″ bores are listed as 750-800 CFM and those with the 1-1/2″ primary throttle bores are rated at 800-850 CFM. All TQs have the 2-1/4″ diameter secondary throttle plates.