strange..I was wrong about the jetting on my truck... when I checkeced it today I had 170/150 p and 180/130s. Hmmm that didn't sound right so I changed it to 160/130p and 170/140.. idled great but was flat down low. changed it to 160/140 both... ran out of time, so I'll run it in to work in the morning and see what happens.