03 f150 5.4 cost efficient upgrade ideas
Hi I have a 2003 f150 super cab xlt 4x4 with 166xxx miles on it. It keeps missing on the 1st cylinder on startup giving me codes p0301 and p0316, ive replaced the plug and coil and the injector. So im afraid ive got a burnt valve. My question is since im gonna have the head off anyway im thinking about some upgrades. I do alot of hauling my horses and hay so does anyone have any ideas to give me a little extra power and still stay in a smaller budget? Also do you think I should just go ahead and do a complete rebuild job on it or just leave the bottom end alone? Thank you in advance for your input!