cam grinds for SC

[jsg at donet.com]

I'm about to install a Vortech supercharger on my SBC 305 TPI, and
I'm thinking about changing cams too. The vortech FAQ has 
this to say about cams:

4) What is the correct cam to run with my
   supercharger?

       Cam selections are best discussed with the various
       cam manufacturers. Many people select cams which
       are not the correct choice for centrifugal
       superchargers. When discussing the cam with a
       manufacturer make sure they understand a Turbo cam
       or a cam for a Roots style supercharger is different
       than a centrifugal cam. Generally speaking the
       supercharger and the cam do the same thing (increase
       volumetric efficiency), be cautious of choosing a cam
       that has large amounts of lift and duration. Ideally for
       a street application retaining decent idle, emissions
       and drivability are important, for this reason we
       suggest a "moderate" camshaft. Given the choice
       between two cams we suggest the milder of the two for
       street applications.

Of course that is of little help, and I would like some idea of what's
going on before contacting manufactures. So, what does make for a good
cam for applications like this? How do these cams differ from turbo or
roots specific cams?

john