anyone hear of 440source.com?

It can be said that the same misinfo put out about the 440source heads, is done by Indy, Hughes, and most head vendors. The truth is they got that number at one point, or they simply take the best flow they ever got and times it by two. The headas are a critical part, but they are one part, and even if the cam and parts choices are perfect, the machining or assembly could be average and you'll never get that figure. So dont believe that you will make those numbers by running thier product. It's all to feed the "racing flowbenches" frenzy that is always around. If i was going to get a set of ported RPMs it would be from Jeff at Modern Cylinder Head. His CNC programs are hard to beat in terms of performance and cost.