I've owned several fox chassis Mustangs through the years. But I have a new project I'm getting ready to start on and may need some advice along the way. I have a 1982 Mercury Cougar II wagon (twin to the Fairmont wagon) I'm going to street rod. I know this is a Mustang forum, but since it is fox chassis and the lack of Mercury Cougar II forums, the info here will be very valuable. I plan to coyote swap it. I already bought a donor car, a 2001 Mustang GT which I will use the rear axle, front k-member, brake system and transmission. I'm looking to see which Coyote motor to use that won't cost a fortune and now, in the planning stage I'm hung up on the fuel system. Since the wagon had a mechanical pump I would need to convert the sender to an EFI system. I cant find one for a pre 1982 Mustang and they say the tank is different and cant be swapped either.

 

A foxbody tank won't fit?

 

CJ Pony tech says no. The spare tire hump is different under the car pre 82 to post 82 fox bodies, so I wouldn't be able to easily swap the tanks.

 

Couldn't you just mount a fuel cell in the back with an electric pump? Would kind of suck since it's a wagon though, or potentially graft the lower trunk area from a fox onto yours?