I have a 1985 gmc c1500 305 h motor canadan made with all the garbage on it smogg pump etc. my state does have inspections ect. i bought a carb. 500cfm and a new intake manifold,and a regular distrubator hei, my question is can you tell me everything i can get ridd of so when i add the new stuff it will run better, my truck isnt computerized eather. also should i get rid of the tip in tip out switch on the firewall? some say yes some say no i dont even know whats it for thank you.