BOV are for turbos. Bypass valve is for superchargers.I'm assuming you mean a Blow Off Valve (BOV)? I don't think you need one at that PSI, but an Intercooler always helps lower inlet temps, which can be good for some more power.
Adding the valve will help with parasitic loss and might improve part throttle drivability. With that small amount of pressure a big red race valve would be way overkill.
Intercoolers are always nice and will allow you to pulley down slightly as the intercooler will condense the air resulting in less pressure in the carb/plenum.
I am confused by the title of vortech and your use of a procharger, I am assuming a P series procharger? Are you looking to change to a bigger vortech unit?