after checking different suggestions out to find out why my truck is idling rough, i finally got down to what is was after a few months of fiddling around with it, i did a compression check and found a weak cylinder and i took the suggestion of squirting oil down the cylinder and it brought the compression up, so the motor is coming out and going to beef it up with a little beter camoversized pistons and a three angle valve job--thanks for all the suggestions--because it really gets to be a headache when most mechanics aound here just want to do guess work