|Originally the Holley 94 (as they are commonly called) was made by the Chandler Grove company for the 1938 Ford. Soon after that Ford contracted Holley to produce the 1 barrel carburetor which lasted until 1957. The Ford carburetor type for the 94 was AA-1.We still see some of the 94’s with the Chandler Grove name on the carburetor. The earliest 94’s made by Holley had Ford stamped into the carburetor. Later models may have 94 stamped. Holley made many replacement carburetors for the 94 including the 2100 and 2110 carburetor.The Chandler Grove, AA-1, 94, 2100 & 2110 designated carburetors are for the most part synonymous and use the same carburetor kit with the exception of a few carburetor numbers. Be sure to match your carburetor with the correct kit.For dual, or tripple carburetor setups be sure to match the carburetors. The Holley 94 uses a power valve, which normally runs at 7.6″. When running 2 or 3 carburetors you will need to reduce the size, or you will get too much gas at power.
A check ball should be installed in the accelerator pump well.
Accelerator pump link adjustment.
The throttle shaft lever will generally have 3 holes, sometimes 4.The center hole is for the standard setting. As you go towards the float bowl you get richer and leaner as you go the other way. Adjust the setting to the best condition after driving the vehicle.
Power Valve Installation
Hold the float bowl and install the power valve up into the bowl so
Idle Mixture Adjustment
After the carburetor is installed on the vehicle. Warm the engine to
Watch a video about rebuilding the Holley 97. Part 1
Interchangeable Parts Between Carburetor
Numbers Parts for the R-1157-1A & R-1157A are interchangeable.R-1158A – R-1157A All except the throttle body.
R-1158-1A – R-1157A All except the throttle body.
R-1284AAS – R-1157A All except the throttle body and the float bowl.
The Holley R-713 AAS was used as a replacement that fit all 1934-53 8