NHRA finally banned our original Te-440 until we add a 5 point roll cage. We have a fuel injected flathead and runs 11:50's. This is at our local track, so not sure if other techs at other tracks will be better. This happened while we were at the Antique Nationals and there were some dragsters running with less cage then we have (and going the same speed or faster) Maybe the tech had it out for us since he said the frame could "crumble under its own weight" (this isn't a barn find dragster, but has been competitively racing since 1958, and is in no way in shoddy shape) We added a "cage topper" about 8 years ago when NHRA starting giving us issues. We didn't want to change the integrity of the frame so the extra frames we added could be removed someday and the originality is not lost. 8 years ago NHRA was ok with this, but not now, since any front engine dragster requires a 5 point cage (even if your going 20 seconds down the 1/4). The next picture shows the added the upper bar on the frame rails. Back in 58' they took them off to save weight, but after 50 years of hard racing the frame started to get a curvature at the engine mounts, so maybe Scotty Fenn was on to something when designing these rails haha.