The Powr-Flo spacers' bore is designed to increase the velocity of the air flow into the intake manifold. By delivering the air with more velocity it allows more air into the combustion chamber for a denser air charge. The design results in improved throttle response and impressive power gains in the mid range and top end.
More air is always better Jet's Powr-Flo spacer is designed to increase the velocity of air flow to the manifold. More air with more velocity means a denser air charge resulting in improved throttle response and overall fuel efficiency.