I have a stock 305 TBI L03 Engine. What should timing be? some say 0* and some say 6* would advancing it 6* realy give me performance? and would it create a hard start when it gets warm out? and should i run super unleaded fuel? would it create an EGR Problem too?? I advanced it to 4* and i keep getting a code 32 EGR problem but i dont think they are related. i replaced the egr solenoid and egr valve itself any help is greately appreciated!!