Muito obrigado! I did have some drivability issues when the temperatures dropped to near freezing - with 2.73 gears and overdrive, it would buck at low rpm. I suspected freezing, but never actually saw any icing. Keeping the engine and intake hot is the reason I went back with the excellent Pontiac cast iron manifold.
We might throw a supercharger on the engine in the future, as the bottom end has been greatly strengthened, but more than likely a better candidate is the "Ford", which is of a magnitude stronger with all forged internals and NASCAR derived block.
I enjoy the insight into the Brazilian ethanol experience, which has led the world towards a more renewable and sustainable future.
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