Dave, I hear you. PCA's orientation in the stock classes is either all-out GT or "showroom" stock, which is easier to police because the car's either an exact duplicate of original (minus the free items and a limited number of carveouts) or only a couple items (tub, engine case, gearbox case and engine displacement) to police. Once you begin to allow mixing and matching of engines it makes it harder to enforce, and the PCA rules are elegantly simple and powerful at the same time.
The real problem is, you don't live in Southern California, right?
