If memory serves, Ford did not introduce fuel injection in passenger
vehicles or light trucks until 1984. Quite a few engines in '86 models were
still carbureted, including most Canadian and other export vehicles. If the
1986 engine was fuel injected at all, it was almost certainly CFI
(throttle-body injection). From the outside those look similar to a carb.
The simplest way to tell would be to remove the air cleaner (or whatever
sits on top) and look inside. There will be no choke plate or venturi, and
one or two large injectors will be clearly visible.