G
Guest
·Could use some help. I have a 66 Mustang with a 289, used to be a 2 barrel, but someone somewhere changed the manifold and carb to a 4 barrel. I am positive the heads are orig. REbuilding the motor and the guy doing the work needs me to id the heads, or at least need to figure out if the heads are diff for a 4 barrel oppsed to a 2 barrel ....thanks