Hello. I've been around diesel equipment and I have been issued diesel company trucks in the past. However, this is my first rodeo owning my own diesel. Truck is a 1993 f-250 7.3 idi with the factory turbo. The guy that I got it from said that the fuel had been turned up by a previous owner. I'd like to take it back to stock settings. I'm not really interested in high performance. Just want to pull logs and equipment with this truck. I'm aware of the procedure to adjust the fuel but have no idea how to go about getting it where it needs to be.