There will be no internal floor on this car, gearbox will be exposed. Full JW powerglide unit, I am thinking that the tech inspectors will require a sealed type floor - hence cover over pan. My thinking about full length belly pan is to catch any leaking fluids from going on track or tyres or having car shut down. Im talking minor leaks not major ones obviously. Cooling issues could be overcome if required. This is my first race car ( only ever had street cars years ago, about 12 sec) so all advice greatly appreciated. Glen