7.3L Power Stroke - Aftermarket & Performance
I'm 17 and just bought my dads old work truck. 1999 f250 4x4 crew cab short bed with the 7.3 in it. The engine has 450k on it. What should I be doing to keep up the longevity and maybe give it more power. I just replaced my top and bottom ball joints, brake master cylinder, hydro boost and some...