Well you can't say I didn't try. "Work" is done to get air into a cylinder. We can all agree on that I hope. Anything done to reduce that is beneficial as is anything done to stabilise the air flow. A 60 cubic foot plenum would be better that a 6 cubic inch and somewhere between the two, while we are deciding the the exact perfect theoretical size, HankXXX is riding past on his turbocharged Bird!