Need some advise here. I have a 2003 Cat 3126 and I need to have a overhead ran on it. I have had one 3126 that after about 20k miles after the valves were adjusted I "sucked" #1 exhaust value. My dad had the same thing happen to him. I have heard many many other stories about the same problem. Finding a good shop is as hard as getting loads out of Tulsa (HA HA). I live in southern Ohio, close to Cincinnati, can anyone recommend a good shop they swear by that close to me.