On Fri, 02 Mar 2012 11:20:52 -0600, Ignoramus22470
wrote:

A followup. Very embarrassing and very typical.

What was wrong was that I mixed up the supply and return lines, so the
fuel pump was pumping into the return line.

The truck now runs great and I have a foot in my mouth.

i
I hope you at least trimmed your toe-nails first!!!