1st are you sure the 5 150 intakes will clear, they are much taller than the car intakes. second why bother putting the mass air system on it, speed density works fine unless you are going to modify the engine. also if you are using the wireing and comp from the f150 then you would have bank fire, which again isnt bad, but why change something that works. stick a speed density upper and lower and thottle body on it and go with it. you already have what you need and it will work just fine.