It is a 99 code paint color. From what little I know about it, it was a Spring Special Shamrock Edition. It's the only one that I have ever seen. Looks John Deere green to this redneck Alabama boy!
I am using the setup without the fuel gauge and and it works great. Has some flexibility built in which I prefer to the rigid setup.
https://www.scramspeed.com/products/carb-dual-inlet-fuel-feed-line-8-an-holley-4150-with-gauge.html