Yeah, I've already checked that thread out. About four comments down he goes into a little detail about having picked up a fuel cell. The reason I brought this question up is because I'm trying to use the stock tank. I would hate to have to pump gas through my trunk. I'm a complete cluts and I don't want to drip a little gas in the car and have to drive my DD around with the smell of gas.
http://forums.hybridz.org/index.php/topic/79649-progress-on-my-insane-vq35hr-240z-project/page__st__120