realizing it has been a couple years since the last post here...
Can you tell if this is an EEC tank?
a couple pictures from my '72 Suburban. I have 3 tubes going to/from the filler cap area:
Here's a wider view, also showing the 3 steel tubes
and a pic of my gas tube: (a little shy if 2 1/4" on the outside, 1 5/8" on the inside diameter)
Thanks for any help!