I mounted mine on the underside floor step up for the rear seat, drivers side, more outboard. It's been there 12 years with no problems. Of course I made sure the fuel lines were clear of the exhaust pipes. Dan
Buy a good mechanical pump and forget the electric pump. I can let mine sit all winter and it will start up without help from an electric pump. Never has had a vapor lock.
I put a Holley blue pump and a canister filter on the rear spring cross member on my coupe and plan on doing something similiar on my convertible with a TCI frame.