What works for nitrous and superchargers is not especially friendly with turbo combinations. Ring location, pin height, stroke and rod length. Turbos are "closed loop" power adders that are abit more sensitive to intake and exhaust design, head flow/efficiency vs cubic inches etc.
I prefer a single plane intake vs the sheetmetal deal. We've seen better air distribution using a common plenum/elbow setup. See pic
Depending on how the design ends up, the cam can be very mild to moderate as compared to a blower/nitrous cam. Once you get a better idea of what he wants....feel free to post up some ideas and we'll be glad to help.