Mercury Cougar Owners banner

xr7 1980

  1. Classic Cougar Tech
    Hi there, I have an '80 Cougar XR7 that I recently purchsed and that came with a 255 in it. I'm buying a 351W that's come out of an '88 Crown Vic HWY patrol car (that's been converted to a 2V carb and points) and that is also coming with an FMX trans. My question is, is it preferential to...