Ok guys, just a quick question. I am replacing the gasket on the housing for the IAC that attaches to the throttle body, I bought a gasket pack for it, comes with 4 sheets, but they are all for different things tho. One is for " air cleaner, one is for "oil and coolant", one for "water pump" and the last is for "fuel pump". I know this sounds stupid but I'm not sure which one would be best, I am thinking the air cleaner one. I also got the gasket in tube stuff ( high heat rated). Which one is better?