How don do you cook a 4 pound boneless pork roast in convection oven?

To cook a 4-pound boneless pork roast in a convection oven, preheat the oven to 325°F (163°C). Season the roast with your choice of herbs and spices, then place it on a rack in a roasting pan. Roast for approximately 20-25 minutes per pound, or until the internal temperature reaches 145°F (63°C). Let the roast rest for 10-15 minutes before slicing to allow the juices to redistribute.