I plan on attending the FSF auto-x on Aug. 31st [much to the disappointment of the competition, i'm sure ]

The question I have is this...

Last time I went, I won the Novice class trophy in my Datsun 2000 SRL311, but now I don't know what class to sign up for...

I have taken a bunch of things off the car (bumper, grill, interior) while I restore this classic car, and am not sure where to put it.

I know that the car is in E-Stock class, and C - Street Prepared, but I think that with what I've taken off, I can't be in the CSP class. So, do I need to go in "Prepared" or "Modified" and if so, which Letter designation?

I have added headers, and a better exhaust, and am racing on Falken Azeni tires, better shocks, front swaybar, and hi-performance ignition coil w/ electronic distributor, but no other engine modifications.

I plan to get a Rulebook if they're selling them at the event, but didn't think I'd have enough time to figure it out before registration, so hopefully one of you can assist.

Thanks.