HVAC, what brand of box do you have? is it easily removed for warranty work? I still can't believe such an increase with just injectors, I know this is a stupid question as you can't keep your foot out of it did the mileage increase? could you do us mileage minded types a favor and check? I know this will be painful for you to drive easy, maybe the clutch will force you to, wow sure haven't heard of any psd's with those kind of numbers, no wonder none responded to my truck pull challenge over there. if I can get the same 2mpg increase with these injectors as the RV's I'll go with them instead, and when a psd pulls up alongside flip the switch on the box and punch it!!!
------------------
'01 on order (pick it up in may 2000), 2500 QC,SWB, 4x4, auto, SLT, black, camel leather, camper special, snowplow prep, tow package, rear sliding window, trip computer, LSD, 4. 10, will install 35 inch mud tires asap, cost 34k. (if your truck is like mine what MPG's do you get????