I run at Lower elevations my map says like 800-1300 feet above sea level for my area. However I have a full fmf with the air box lid off. I leak tested set my float height (btw did u make sure ur float hight was set proper before plug chopping its important) I chopped at 300 first it was a good color It was a little bit of a darker cardboard brown I think a 290 would be spot on but like Awk said I'm not getting paid to ride I'm just having fun. A plugs a couple bucks a rebuild is a couple hundred.