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i was just thinking... you know how an intake manifold is supposed to be of a specific design to optimize cylinder filling and efficiency? like, the intake plenum volume is supposed to be anywhere from 50% to 75% of the total engine's displacment? it essentially acts as a big resivoir of air for...

soo, i was in the FAQ and looked at Allans flow bench results for unported and ported 7M heads. stock lift is about 0.311". IIRC, the intake side flows 178cfm at that lift, and exhaust side flows 124cfm at that lift. the exhaust side is significantly imbalanced from the intake side. i...