My Z does not have to pass emissions, so what all could be removed from it? I already ditched the smog pump, plugged the line that went to it/from it, took off my A/C (since it didn't work), and I was wondering what else could be removed for higher performance/less clutter.

 

Take some photos of your engine so I can see what is left on it to start.

 

here's an older pic of my motor (I don't have a digital camera). I have removed the a/c, all brackets for it, as well as the smog pump. I plugged off the hose that went to it, and didn't have to do anything after that.

 

Your Tappet cover vent to the air filter can be replaced with a small K&N Air filter. I'll have a look in my book at home about what other EC systems can be removed from the motor to give bang for buck.