1968 Barracuda Notch 340
Well, I think maybe I got lucky maybe not. The check valve, at least when filling from a gas can, is a liability in a tube with an angle this shallow. The tube fills up, overflows and you can hear it just trickling past the check valve into the tank. Removed check valve, problem solved, seems to be plenty of slope for side filling ,maybe a ride in the a.m. gettin warm here in Phx.