440-1 flow numbers

If i had to do it over, i would still go 572-13 heads, aluminum block, but again i would run a CCW crank in 4 5/8 stroke to reduce rpm some and improve the lower end of the power curve. My reason for the CCW (EXPENSIVE!) crank is to help reduce stress and improve ring seal. I have no back to back data between non ccw and ccw cranks, but my guess is it is worth it at bigger strokes and higher rpm
My deal at 549 cubes seems ( after limited runs) to want to be run up around 7800 rpm or more for best ET. That to me seems a bit high for stainless valves and .868 gross lift. Seans motor runs VERY well, and i have to think his large core, 4/7 swap cam is part of it too. Put all this together and over 1,000 hp should show up, and the average power over the operating range should be higher.