Thanks... We will probably build 2 custom removable fuel cells. One of 3 gallons for racing and a larger one for street use. Not sure on the location there a few options, I'd like to position right behind the passenger seat for best weight distribution but in case of the an accident wouldn't be as safe. Best bet is behind the firewall for safety. We will build a firewall strong enough to protect the occupants.
We will pick air up from under the car, hopefully that will be enough. I'd like to keep the car as stock looking as possible. Unfortunately we will have to put grills out the back to evacuate the air pressure building in the back during a run.