Well, I didn't do this personally, but it's what I discovered. But hey, it got me to convert to a 250, bump up the compression, port the head and increase intake size, and put in a bigger CAM. It's a whole lot more engine now than it used to be. In the picture you can see how low the carbon rings are.
Anybody need a leftover 250 short block? Well, it comes with a 230 crankshaft.
