This is just my experience, but a with a high volume oil pump there is a chance of pumping the sump dry unless you have either (or both) a deep sump oil pan or enlarged oil return galleys.
I had a HV pump in the last incarnation of the 406 in my 85 Monte and the motor ate the cam in a couple of months. I went back to a standard volume, high-pressure pump (Melling 45a, I think) but I haven't fired up the new incarnation of the motor to see how it's gonna work.
But this version has a roller cam instead of the flat-tappet that was in the previous version, so there shouldn't be any cam flattening issues.
