I would buy the thinnest shims shims that Jason sells if they fit 4.1's, and take some off the heads, myself.
if Flat tappet, I would just as soon have a cam with a duration around 208 but a 212 is okay with a few extra inches. I see no point in revving over 5800...I will take boost over rpm any day.
If it hooks, high tens should not be a problem with the right turbo