[Mach1 Driver]

I see that Tanks, Inc also have a similar 2" valve but nothing larger. The 65/66 filler tube hose is 2.25 OD, so one might have to improvise for either diameter to work properly.

Dang, same here, its 2.25" for 67-70 also. Maybe some modification is possible- maybe print a ring for a larger OD...if there is printer plastic impervious to gasoline. My local library will do 3D printing for next to nothing according to my son.

 

[Mach1 Driver]

PVC is "gasoline proof".

Bart, unless this quick search revealed another internet untruth..