I was inspired and amended these diagrams and photos to illustrate the emissions system layout and what changes can be made to it:
Here's the modifications to be made when swapping in a non-integrated head with Offy intake (or Clifford) with Holley 390cfm carb (or Edelbrock 500cfm) and either Langdon Stovepipe headers or Clifford shorty headers (using the 2.5" outlet 292 HD exhaust manifold without the flapper valve, exhaust will still heat the manifold):
Here's how the hoses run on my '78 integrated Monojet 250:
For the Holley 390cfm carb, I'm not familiar with the Edelbrock 500cfm carb so I'm not sure what ports these would plug into for that:
Keeping the EVAP system for the fuel tank is preferable to removing it and venting the gas to the atmosphere, and your garage smelling like gasoline. Not to mention not venting all that gasoline you paid for into the air. The PCV doesn't hurt performance, and just scavenges the blow-by gases in the crankcase instead of venting them to the atmosphere. These two things were the first emissions controls added to cars and made a huge dent in the smog in urban areas. Then of course you need to have your vacuum advance hooked up on the HEI too.
I also checked in Florida, my other home during the winter months, even tho I don't take my Camaro with me when I go. And there are no emissions inspections at all in the state.
