If I was you, I'd rip out the Evap canister(coffee can), smog pump, cat, and restrict the egr valve opening. You can do this by making your own gasket out of a coke can and just punch a smaller hole in the center smaler than the factory gasket had. This will help limit the amount of carbon being blown into your intake, but still lets the hot air/gases in to reduce pinging. riping all the other stuff out just gives you more room in your engine compartment, less weight and less stuff to go wrong.
