I've "voted" by doing on my car. We're going to do the 9 hour enduro at Road Atlanta Dec. 4th. The 10 gal. max has been waived for this event. With the fuel restrictor in place, it'd take us over 10" to get 20 gallons in, vs. around 5 with the neck gutted. We'd give up 20-30" over the course of the 9 hour enduro against the other cars we compete against. Hope I don't have to change it back!

Eric,
Post a picture?

Yes to fuel lines and fuel opening.

Billy. I don't have a pic handy, but just took a hole saw to the restrictor. Make sure you do this with everything secured, on a drill press if possible. I let a mm or two around the edges, so as to not get into the wall of the filler neck.

Do you still need an early offset wheel?

Yes to both.

yes to both