I'm inviting all rally entrants to think about entering the PHA (Pennsylvania Hillclimb Association) events. I've managed to have the rules changed this year to have 2 classes, forced induction and naturally aspirated.
PHA Rally class

There will be two classes: Forced induction with a 34mm restrictor plate (Rally FI) and Naturally Aspirated (Rally NA). All cars must meet the classing and safety requirements and possess a current rule book from one of the following series:

Rally America
NRS (NASA Rally Sport)
CARS (Canadian Association of Rally Sport)
SCCA

http://pahillclimb.org/