ASR tops out at 5L with a 1811lb minimum. That could work out but against everything else in that class it'd be rough. BUT - none of that stuff runs in the enduro at all, so we'd still be a one off even in ASR and have a chance of overall win.
ASR is a regional only class and does not exist everywhere. In fact, I don't know if it exists in the Southeast but will find out. ASR would definitely work for the purposes of getting the car a logbook and in the race if they allow them.
I used to have a SPO list around here and I'll find it. It is (I think) a regional only category with the intent to be similar to this:
Super Production cars will be based on mass-produced automobiles produced for use on public roads or replicas thereof generally fitting the profile of a mass-produced automobile. Other cars may be eligible at the discretion of the Chief Scrutineer and the Chief Steward.Four-wheel (all-wheel) drive is permitted in Super Production classes.All SPx cars must meet GCR 17.4.1 fuel specs.
And other stuff about the cages etc. were similar to Prod. The thing that allows about anything to run in there are those clauses "generally fitting the profile of a mass produced automobile" and "other cars eligible at the discretion....". There is a SPU, under 2.3L, a SPM, which is 2.3L to 5L, and a SPO, which is over 5L.
I couldn't find it in the 2006 GCR either but my attorney buddy and rules man said we're good for it. I know SPO runs in the South a lot with the ground pounding NASCAR motored stockers that are amazingly fast.
Best move this thread to the racing section.
NASA has KC1-5 for kit cars/replicas etc. to race in KC1=100hp, KC2=200hp, etc. However, there isn't a lot of action there I don't think but your mileage might vary. NASA has so many special classes that their run groups might be segmented into 10 classes with each one having 2-3 people competing.