Dave,
After you start it up, get it nice and hot, etc...go back and check all the nuts and bolts, manifold to DP, best to wait on the heat shield install until all settled in. I have studs and though I checked it before after the track days all the DP nuts, on studs, were a little loose.
I would use loctite on the compressor inlet elbow bolts as well and also make sure the oil and water lines are tight after getting it nice and hot.
On banjo bolts with washers on each side I like to tighten, loosen, wiggle, tighten, loosen, wiggle, tighten. I do that on brake lines and AN fitting well and it saves a lot of added work later.