1987mustangowner

hey i have a 1987 mustang that i would like to run an f303 cam in,but have been told that it will not run unless i convert to mass air but i dont want to convert,nor do i want to convert to a carb,ive read that if you put a fuel filter in the vac lines to create more vac so it will run right.i have a 1989 computer that has mass air capability will changing the computer help in any way.please help