what is the moast aggressive Cam I can use with a Plastic intake??
 

I am doing a 3.8 engine build off a 993 3.6 and I have a plastic intake complete, so I was wanting to know what the most aggressive cam I can use with a shared plenum on a 3.8, I also have hydrulic rockers which I would prefer to keep (budget constraints), the engine was a 98 VRAM block which is in pretty good condition so I was wanting to just do a straight camshaft swap, for say a 3.8 RS grind or something like that.