OK, replaceing the GPs cured the no start issue, but tightening the fuel filter didn't resolve the idle problem. Didn't have time to adjust the damper screw, little lady had to leave for work. I'll try that later today and see if it'll idle in the morning. Thanks for all of the suggestions, keep them coming.
Jeff

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1971 R600 Mack toterhome (SuperDawg)
99 NU-WA Snowbird 34+2 SE 102 5er
If it's not diesel, it's not in my stable!
53 F100 617.951/auto
95 Dodge 3500 Cummins/5 speed service truck