thanks for the replies guys.
According to the gcr's for the IP3 CACC division(Canada), brakes allowed are whatever will bolt to the original spindles, rims allowed are plus two from original, and width being whatever will fit within the stock wheel arches/fender wells.
Engine is a overbored JH with cis and g grind cam, exhaust, etc. Car will be set against e30's, integras, etc, so I have been told it will not be too competitive. I will most likely go to a 16v swap(we don't go into vin's much here) next season, if the car turns out to be a total dog.