OneFine89Mustang

all my mods are below...i have my upper intake manifold off...(new valve covers)....wanted to do an adjustable fuel pressure regulator while im there..my question is.. is this just a quick swap..just swap out the old regulator for the new one..or is there more involved?..also will my car run any different..i dont wanna do it if my engine will not run right..


thanks

mjr46

swap it out then set the adjustment on the regulator, to do that you'll need a gauge on the rail.