PORT VOLUME-IS BIGGER BETTER OR IS LARGER LESS? Richard Holdener

Big thing i take away from this demo is people want to say too big of a head kills low end power when in all actuality most of the power difference is less than 10hp across the pull, up until the point where the larger head pulls away in the upper rpms. Youll be hard pressed to find someone who can tell a 10hp difference by the seat of their pants. (Read 90% of the people on this board, myself included)

As mentioned by Richard, what is it doing at part throttle? I’ll never recommend the biggest head port as possible to use. Ever. The dyno is one thing, actually driving the car and how well it works is another.