Quote: Brian How can a head that flows as much as the Victor, not push the rpm up on a smaller none stroked motor. People refer to their suitability to small engines almost in the same vein as the RPM'S, which are more of a stock replacement. Is it because they have a broader spread of power and better low to midrange flow numbers. Mick
The Victor's have a good combination of port speed, valve size, and it's a raised runner head so it has much better cylinder fill.
