Who is saying that camel humps suck ??? Those camel hump heads are closed chamber at around 64 to 64 cc. They are the best shaped chamber to run on the small block because they produce 30 ft lb's more torque than the open chambers. Sure, they are over 40 years old and they are old teachnology, and a lot of people bad mouth them because of thier age and prone to cracking. These heads came with that 327 right ? Chances are that they are okay. And swapping to the 75cc open chamber heads will drop all 3 aspects, compression, torque and horsepower. They were made when cars used leaded gas, so the seats are unhardened, thats the only drawback, but it takes a long long time to chop out seats. Besides you are only using it as a fun car. So the unhardened seats will hardly be an issue if you take the trouble to add a little bit aof lead additive everytime you fill up.

I gather that you allready have the mild cam and intake.

Beef it up with

Headers
Holley 600 cfm vacume secondary carb with secodary metering block and center hung float bowls
Auto shift kit
An ignition with the ignition curve adjusted to your car and style of driving