Ok... looking for some advice again.
On my 63 Riv gas tank there is a vent line, I have attached a rubber hose and looped it over the filler neck.
Question: What type of vent one-way valve should be installed on end of the hose? Should it be mounted upright if it is a "ball-check type?" Or use a non ball check type?
There is not a lot of room in that area for a "larger" Holley rollover type check valve, which I have. (see pic) I just kinda through it in there to see how it may work, but fitment and getting it mounted upright is a bit of a problem. Whats your thoughts? Anyone using a check valve, different type check valve, or other ideas?
Thanks for your time and ideas!
SF