needaresto,
True they very well could get over 200 cfm's but then your getting very close to what your intake flow is. The more air flow on the exhaust doesnt generally mean more HP, and you only need 70% of the intake charge to be efficient.
Things that I've found before when the exh. flow was higher than the intake flow was that a large overlap cam sucked the intake charge out and created a lean condition in the engine. This is why SF says to get 70-75% of the intake charge and theres no more to be gained. And we've actually seen anything more than about 62-65% and the gains become minimal.
