Stock replacement paper fuel filter element is located in carburetors fuel inlet housing. Built in check valve prevents fuel from draining back out of carburetor when engine is turned off.
Check valve filters do offer more restriction to high RPM fuel flow than non-check valve filters. For performance applications we recommend 2251 (No Check Valve Filter) or if you really want the check valve with higher fuel flow, you can pull out the check valve from the filter end and carefully pull bottom end of spring out of check valve and snipe a few coils off end of spring, then push end of spring back into the valve.
Rochester OEM # GF-470
Edelbrock # 1926
Rochester Quadrajet Carburetors
Rochester 2G Carburetors
We recommend installing a new fuel filter spring to replace a weak or missing spring. The spring is installed in the carburetor body first then the filter goes in next with the filter opening facing away from the carburetor. The fuel filter will not work with a missing or weak spring.:
#2261 Fuel Filter Spring
Also be sure to install a new Inlet Fitting Gasket:
For Rochester carburetors with 7/8" inlet threads use #2231B
For Rochester carburetors with 1" inlet threads use #2232
This fuel filter fits the following carburetor numbers:
1901, 1902, 17058213, 17058215, 17058229, 17058513, 17058514, 17058515, 17058525, 17058529
May fit other applications.