side by side
I would have to agree with that. Everything else being equal, the one that is more effiecent would run better, more power and longer run time. So if you took two identical motors, theoritacally, left one alone and did a proper surface prep to the other one it would improve, but, it WOULD probably flow a better number. Dana at Revelation told me a story about McCoy bringing in 100 identical motors, dyno testing every one and found, 3 really good ones, 3 really bad ones and everything else somewhere in the middle. The major difference being the sizing of the piston and liner!