That is pretty good numbers. I was looking at the way they flow bench intakes, and it would seem that the puck would only slightly restrict air flow, but not too much. When they wet flow an intake, due to the boost/vacuum signal generated by the motor under the carb, most of the fuel coming from a carb sticks to the top of the runners, very little fuel sees the bottom of the intake. I think the puck is a really good idea, but you would still want a fogger in your high horsepower (1000 hp plus) applications for its per cylinder tuning capabilities.
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When the people fear the government, there is tyranny. When the government fears the people, there is liberty.
Thomas Jefferson