I found what I thought might be a nice 250 to build, '72 with only 39K miles, never rebuilt, but the core shift seems bad. I read where ideal is a 3/8" machined strip on the #1 cyl. This one starts about 3/4" wide at the top to a point not really even all the way down the cyl wall. No picture due to the photobucket thing, sorry.
So how bad is too bad?