17psi is pretty good. If I recall correctly, 16-18 psi is where the Factory turbochargers are happiest and most efficient. Boost over 18 psi will add a significant amount more heat. These turbos build boost very quickly, but they don’t have the overall potential of larger units, which spool up more slowly.
The good news is, you already have an intercooler and intake, so you would not need anything else but a tune. Keep in mind that you are in a pretty hot climate - like USA / Texas, Arizona, New Mexico type heat.
I would imagine in Kuwait you have ready access to high octane fuel, but, Ford has to design the truck to work 100% of the time in Nome, Alaska to Phoenix, Arizona and every climate in between and consider fuels from 87-93 octane, commonly available in the USA & Mexico.
so if you tune it, be conservative, especially for high temperature conditions.