Thanks, everyone! quick update- I got the other side installed this weekend, as well as worked on fixing my passenger fender lower area. There's a lot of issues here, and I'd replace the fender altogether if I hadn't already modified the wheel opening area so much.
Today I had a little time so I chopped my rear bumper into thirds. It may be a bit more work up front, but this way I can get the main section to sit closer to the car (I shortened the brackets) and still retain the original width for the license plate area, as well as align it with the bumper holes and I can adjust the ends without having to support the entire bumper. It turns out I need to widen my bumper. I attempted to form some metal to the shape of the bumper and later realized that was a waste of time. I'll need to source another bumper (or part of one) for the proper shape material to move the ends out wider to fit my fat car.
I'm still waiting for an additional rear bumper to show up so I can chop it up and widen mine, so I decided to start working on my fuel filler neck. My issue is twofold. 1- I want my car to work with modern fuel pumps. All the pump nozzles here in so cal have those big springy vapor recovery tubes over the nozzle- which just don't properly fit 1967 Firebirds. One has to hold them back- guaranteeing fuel spillage and making refueling a PITA. So I'll take the opportunity to install a modern style filler neck (which is .25" larger diameter) and widen the area around the neck to allow the pump nozzles to fit. I also want to add the anti slosh/ anti siphon parts that modern cars have. 2- Since I recessed my tail panel the stock set up won't fit anymore, so I have to do something with it anyway...
Yesterday I raided my local wrecking yard and came home with three different filler necks for possible use. In my pic- the original Firebird is on the left, then is one from a Chevy Astro van, then a Jeep Grand Cherokee, then a Dodge full size van. I'm going with the Astro neck as it seems to fit well.
The dodge filler neck also had a checkball valve in it which is exactly what I wanted, so that is now going into my new filler neck.
I started to build the area around the neck, but got rained out so I'll have to continue another time.
After being in HK/ China for 2+ weeks for work, I finally had a chance to get back on my car today. Small progress on the fuel neck. Still working on it, and now I need to fit in the door and hinge mount.
Brendon, very cool idea, and same though here I HATE filling up the tank of the bird: 1) It happens too often - gas guzzler JK, kidding 2) the filling up process requires some Yoga maneuvers so I can fill, view, and not spill! And it rhymed. I was debating previoulsy doind a Camaro style filler on the back, and change the angle but like your idea.
One other thing I was thinking is building an extension that you can basically attach to your stock filler and remove at fill-ups.