Just to make sure we're on the same page....the 250 balancer from Buffalo is machined to fit the 235 engine and you have to get it rebalanced. He shortens the snout, reduces the diameter of the seal area and provides a felpro "quick sleeve" so you've got a good timing cover seal fit, and cuts in the second 3/8" groove.
You have to scout out a machine shop that can balance it. If you can't get it rebalanced you'll wind up with a $200. paper weight.
I'd get a confirmation from a machine shop that they would be able to balance it before I ordered it from Buffalo.
Dave
