That's what I was just looking at today. I tuned up my 300 and pulled my msd coil from my mustang *waiting for new heads and cam and other goodies*... I just wanted to see if maybe the coil would help the mpg out a bit. Idk what else... I have to get rid of that horrid filter box set up. Who knows.. I don't tend to drive my truck like I stole it. We'll see huh. - nick