I was hoping someone could help me out here. I love driving my 70 mustang coupe but the smell (combination of fuel and exhaust) is a little overwhelming. I just added fuel injection, so I know the fuel and exhaust smell will decrease with time but I was wondering what else I can do to quiet down my ride and kind of seal off the interior. I already have dynmat and dynaliner on the floors but not so much on the package tray, firewall or trunk. Any suggestions as to what I can do? Would lining the firewall, doors, truck, etc make a big difference?