[Ol' Ron]

I've done some flowbench testing of the ports and found that the stock center port flows better than any of the others. I opened up th end poets (on the cover of my book) and that was only a 4% increase. The center port in used onece per revolution, where as the end ports are used once every 2 relovitions, so inevect you don't have to make another port. From a tuning stand point the center port has more exhausr velosith whiv\ch in a header can creal a vacuum to improve flow at hi Rpm's. I think this is the reasonthe flathead has a unique sound. However with all this said:: " One never knows" After 67 years after they quit building them, we still find ways to make them better. Imagin what a new block wit better ports could do???