Ok, so I have a 2010 with a 5.4 with Flowmaster cai, jba shorty headers, flowmaster super 44. I have a SCT 7015 tuner that I mess around with. Seems like since I started changing out stuff, I fall flat up to about 2k rpms, then power just hits. With my setup, would a custom tune make a difference, or is the tuner I have not even the right one? When I called sct, they said they couldn’t help me because technically, my tuner was for a 5.4 f150 and not a raptor.