390/420 Performance Air Intake Kit

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EFR Performance Air Filter and Carb Jet kit upgrade for the 390/420 Increase air flow and give your engine the proper amount of fuel flow by using our air filter and carburetor jet upgrade kit.
Our kit comes with the following components:

K&N style performance air filter
Foam pre-filter
New Gasket
Radiused air filter adapter
Choke hold down bracket