I'd also recommend the
@caulk04 transmission cooler bypass mod to keep your tranny cooler, and the PPE transmission pan with a full fluid change to Red Line automatic transmission fluid.
Edlebrock E-Force is also a neat supercharger and works well with the 5.7. If you're looking for high end, perhaps Kenne Bell.
I'd still put in a decent mannered cam with higher quality valves, springs, retainers, etc., and long tube headers. Then go with HP Tuners and find someone who knows how to really dial in a safe tune with this set up.
You're going there... why not Thitek heads and be done with it altogether! ARP studs and Cometic gaskets, too! Oh yes... ATI Super Damper for forced induction; keep it all balanced out properly