Agreed! No need to gasket match, as then you're just creating a small expansion chamber where it's not needed or wanted. The one thing you might want to do, is make sure that there are no overhangs in the direction of flow. As in, don't touch the intake manifold's gasket mating surface, but it can't hurt to make sure that the ports in the head are the same size or slightly larger than the outlets of the intake manifold. The same goes for the exhaust side, leave the exhaust ports in the head alone, but make sure the inlet ports of the exhaust manifold are the same size or slightly larger than the head's ports(if possible).You can/should leave the head and intake alone at the gasket area. The restrictive spots are in the bowl area. I do all that work prior to cutting the seats and putting the ground valves back in the head.