Kustom Bitz has plain chrome air cleaners and a range of AussieSpeed 14 inch diameter alloy finned air filters that will suit Holley 4 barrel carburettor. Our 14 inch air cleaner tops are also sold separately for those who already have good bases and filters and just want to dress up the top of the engine or change the look. Available polished like the one shown or raw unpolished for that old skool look, state when ordering or enquire.