I own a 1955 Chevy BelAir Sport Coupe, it has a six cylinder engine with 3 speed transmission on the tree. The car has been restored and I have a question about the air cleaner. Currently the engine has the original oil bath air cleaner, should I update to a larger more modern filter type air cleaner or keep it original. My concern is keeping the engine running smooth with cleaner air. Appreciate your response.