Get a psd!!!!! I run 37" tires and haul a 22' sled no problem @ all! i put the banks power pack system on with the intercooler, man what a difference. Truck will pull any hill with a load and not drop below 75 mph! One word of advise is to keep regular on changing your fuel filters, every 15000. Those injectors and o rings are expensive! Only use ford filters the others are cheap!
If you ever need work on your stroke The Power Shop is the only place to go.....Chuck Arnold does a quality Job @ a fair price