I have a fuel cell in my daily driven 64 nova. I also have no back seat. For safety and looks I want to put a barrier between the trunk and back seat area. I also have heard that when using a fuel cell you must have a divider in order to pass tech at a drag strip. I've been trying to find the rules about his but can't find them. What are the rules regarding this barrier? I was hoping to go with a sheet of aluminum pop riveted onto the metal framing that usually is behind the back seat. Then use a little caulk so that liquid and gas can't come through anywhere between the trunk and passenger area. Only problem is that I can't find any where that sells a sheet of aluminum big enough except one place but I'd have to buy a very large bulk piece for around $250 and have a bunch left over. Lowe's has peices big enough to cover half so I would have two pieces of metal instead of one. Would this still pass the nhra rules? Also does it matter that I have holes cut for speakers in the rear deck? They have speakers and the rear deck tray over them but no metal barrier. Thanks alot for any help, I am just trying to make this a safe daily driver that will also pass tech at the strip.