Anyone put a fuel cell in a 64-66 Cuda? Bad idea? Fumes?

I personally don't like the sound of it, but let's "go back............"

Mustangs and a few other cars.........in a Mustang, the tank top is the TRUNK FLOOR. For many many years, lots of 'murican pickup trucks had the tank in the cab behind the seat.

You will never make it at a dragstrip with a trunk fuel cell unless you provide a firewall between the tank and passenger compartment.