RiverrattralphExplorerSep 25, 20142 air filtersI have a 1989 Winnebago Chieftain with a 454 and Qjet carb. What is the inner air filter for and how do you clean it? Show More
MotorProExplorerSep 26, 2014Its not a filter. Its a flame arrester. It is suppose to prevent a fire if it backfires. They are reguired on boats.