this is vague but i THINK you're talking about the way the engine's are set up...? I'd say it doesn't matter as long as the company making the Short-Ram keeps the tube and filter away from the heat-emitting parts in the engine bay. and on that note i'd say any intake that draws air from directly above where the exhaust manifold is or directly behind a radiator would be a bad idea. im guessing that's not what you meant but i tried.
the intake headers is in the front while the exhaust is in the rear...so which way would be better front or rear...