DsmCivic

My first question is regarding meth injection on a n/a motor. My thinking is a few of the benefits would be lower combustion temperatures, in theory you could advance the timing and add more fuel as well be able to clean the intake manifold everytime you use it. Anyone have some experience with this before? I've got a spare head and intake manifold. I'd like to try ceramic coating the combustion chamber and valves, has anyone had any experience with this before. I'm a regular member on the ca.dsm site and a few members have discussed the potential efficiency benefits that ceramic coating can produce. I'm just trying to gather as much information as possible on the topics, any comments would help. Lastly some recommendations on machine work i should do and/or what to replace on re assembly of the head.