I'm thinking of the Mod class for mine as it really doesn't fit any of the concours classes. But do I have enough mods to score well? Interior is pretty much original except for an after market rally pac and AC that look like the original and some rear speakers. It has AR 17 inch wheels and 4W discs. The engine is a 289, but modified with aluminum heads, air gap manifold, Edlebrock carb and headers. Some other things like power R&P steering. Would that be enough mods?