To the OP: You're going to need to spend a LOT of time and MONEY to get that cam to perform well in that engine, pretty much you need a new ->EVERYTHING<-!
Your best bet is just to switch out the cam with something a bit smaller, like the XE268H. 12-242-2 - XTREME Energy
Note that's a flat tappet cam, I assumed you're using flat tappet since it's an 84 and you didn't mention a retro fit.
That cam will give you better power down low, and you won't need to swap your converter, although a 2000-2200 will benefit it. Likely your stock gearing will work just fine, but again some 3.42s would be nice. Porting the heads always helps. You'll want to swap the intake to a performer rpm and a better carb. That smaller cam should give you a nice sound at idle as well.