Think of it this way, you want some where for the dirt to build up. So following the flow of the fuel you want it to enter the the filter and build up before it hits the screen, then it flows to the carb. If its put on backwards there is no room for the dirt to collect, so it will force its way through the screen or block the flow.
Joey Kubat ↔ MWNS Staff www.MidwestNitro.com
Mugen Seiki / AKA Racing / Novarossi / PT RC Racing Oils / Advantage Racing Products