I wouldnt run more boost without an intercooler, but you have to know first if you already have one, it could be an aftermarket intercooler which would be a large radiator-like thing in front of the rad or bellow it, it has to be connected to the Supercharger.
It could also be an AFTERCOOLER
....click here
Also, more boost means MORE FUEL NEEDS, if it goes LEAN you can blow a head gasket or a piston.
Take it to a good shop, they will know whats needed to get more HP out of your combo and more importantly how to tune it. You might need larger injectors, a custom chip, larger fuel pump, etc.
By the way, to get more boost (& HP) you could install a smaller diameter SC pulley..but beware of the above, dont just drop a pulley in there.