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This is just my lousy $0.02, but it's also pretty easy to do so take it for what it's worth, but you may want to consider slapping some black creative foam over the top of the baffles to close up the gaps between the cylinder heads and the edge of the plastic baffles. It would keep air from escaping the engine and force it right over the cylinder heads. Especially important in humid weather, as I so found out last year