I have a couple questions for you guys. First my ride: 95 civic lx mt w/ b16a SIR II, dc sport 4-2-1 header, aem cai, aem pullies. 1. I hear a clicking sound around my intake manifold, sounds like it is near the injectors.. I know it is not the valves that is making the noise it is two different sounds... 2. How much blow by is normal out the exhaust with this motor. I know in Japan they dont worry about emmissions(SP) as much as we do.