Pastry, the intake was designed to fit under the hood. I matched the head port openings and kept the runners the same dimension all the way. I was recommended to do this by another porter. I do not know the plenum volumn but the runners are 2 7/8 x 1 3/8 to match the port opening. I really DO NOT want to cut the super 400 hood that is on it for a taller intake unless it can be proven to vastly outperform this one.The valve lift is .800. Hopefully I can post the dyno sheet and pics of the intake.
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