My Mom's got a '69 Mercury Marquis convertible that just sits in the garage. 429, 4V, dual exhaust, limited-slip, rated HP somewhere north of 360 @ 11:1 and super ethyl.
Repeating -- it just sits in the garage. But hey, I've got my fleet and my brother's got his, so what can ya do ?
Remove the engine, tranny and rear end and install into a mustang for very quick, fun car. Drag the rest "over the scales" and do the "green" thing by recycling. Makes for a real good tire smoker................
I built a couple many years back, it's way easier now, all of the motor mount brackets and little accessory stuff that I had to make from scratch, you can buy now.