there are a number of good cam profiles out now for the lowly 2v.
MPH cams and VT have good feedback, dont forget Crower - Livernois sells them. I'd defer to the cam company you pick for recommendations on which profile will work well with yoru combination.

porting your heads is a good idea if you'll have them off anyway.
the IM is still a restriction on our motors. hopefully one of these newer designs will come to production soon and be reasonably priced.
Under boost is where the air-flow upgrades really show up on the 2V.

If cost is a major factor, go cams and blower. I know from experience when you go all out it takes a looooong time to get it all done.