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Most of you guys race where your WORST air is about as good as we get. The BIGGEST factor is the Barometer. As you go up the TRUE barometer goes down(we generally see mid to high 27ish barometers which would send the east coast guys to the hardware store for plywood and supplies thinking a hurricane is coming.), just no way around that period. Just simple science, not rocket science. Guess it is something flatlanders just don't get. Then again they do not get to wake up every morning surrounded by 360 of mountains either.

AS for the question at hand. A 451 or 511, lots of off the shelf parts for both combos and plenty of proven combos out there.

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