Went to the track last night, The truck was miss firing really bad, I had to put valve cover spacers on when I put my rockers in to clear the valve cover and they stretched my spark plug wires kinda tight. I put the scanner on the truck and 2 cylinders were miss firing really bad and the other 6 were also miss firing but not as bad, coughed and sputtered down the track but was able to clock a 14.404 @94.840 mph, I guess that's not to bad for a truck that was miss firing on all eight cylinders I was wanting to get into the 13** so bad, I even went and bought a helmet.
Jim it was nice talking to you also
Mark

 

did you ever figure out your problem or is it still missn'?? I would have to guess electrical with those kinds of symptoms. was everything else ok?

-those times are not bad AT ALL for a truck not running well on a single hole.