[quote=Parrish57;260660]
Quote Originally Posted by Ron Earp View Post

So just to be on the safe side, make sure your modified air cleaner only attaches where the stock unit attached, leave the thingy in, and don't create a forward facing airtight ram air box.

Of course, this is just my interpretation of the rules. I've heard many other opinions over the years.
I think mine is okay, but what is the thingy?

Bear in mind I have never seen a stock 260Z setup. I have two K&N filters on the carbs bolted on using three bolt holes in the body of the carbs, a "not a heat shield but a piece of aluminum that sort of keep radiator air away from the carbs and is attached to the header". Mine is far from "air tight" though, it is mainly wide open. Definitely not a forward facing air tight ram air box. I get semi-fresh air from two factory holes that are right beside the radiator.