Wow, thanks guys. Odometer says 186,000...but I figure its closer to 200,000. It didn't do it last winter....guess the wear-n-tear is getting to it. How hard is it to install the H/X line? My dad's 96 7.3 has 640,000 miles on the original injectors. It would usually "clack" on a cold start but never lope like my truck Always ran Valvoline 10-30/40. I feal better now that I know it's normal. Thanks guys
The HX install is a 30 minute job, everything involved is on the top of the engine.
Remove a plug, on the L & R oil rail.. install the HX line between where the plugs came out... Done deal.
Highly recommend, IMO, for any 7.3.. Stock or Tweaked.
Joe