I talked to Russ about the '27 hood length. The accepted hood length for '27's is 27", which answered my question and is what they have been going by. Which is fine with me. Other than the inspection for all things safety and mechanical plus any visable body modifications, I believe that our Street Roadster Class is self policing to keep everyone honest, with a protest being the main means of controlling modifications. At that time, out comes the tape to make sure everything is as should be.
My body is an original steel body, unaltered, except I had to make the deck lid and the lower body panel, which are the correct dimensions because the sides of the body have to exactly meet the lower body "frame" that wraps around the back. Doors are totally stock also, including the original latches. As you can see by my picture, the rear fenders are totally original....rust and all. I did remove the air vent in the cowl, and built my own dash plus a dozen hammer welded patch panels across the botom and on the quarters, but no change in the dimensions.
If I had to do it over again, I would evaluate building a 29 to 33 roadster. I built a '29 highboy street rod several years ago. Mike you might remember it (same orange, Jag rear, 351C). Although a little less aero (and that could be debated), they allow more room for everything inside the body and under the hood plus a little longer wheelbase. This is something new builders should take a look at.
I like the Street Roadster Class because of the nostalgia look, the competition and the great group of competitors. I also commend Russ for his work at trying to do his best to control the Roadster Category so everyone has fun and goes fast!