There is this little company that provide intercooled superchargers for 5.0s. There called ATI Pro-Charger maybe you have heard of them? Half their kits come with 2 cores some come with three cores. Heres the link http://www.procharger.com/FORD/ford_auto.shtml
Personal I have no idea why these superchargers are constantly overlooked by the stang community.
Well ... for this particular thread ................
The Procharger is not an apples to apples comparison
Grady