I used Olivers in my rebuild. Unless you find a sell on them somewhere, be ready to pay $1000 for them. But they are really nice rods. I couldn't find any balancing marks after getting them back from the machine shop. The guy said they were all matched to start with. I have a friend that runs the carillos in a 549c.i. chevy BB and blower in his boat. He hasn't had any problems with them. I think any of them will do a good job as long as you have a quality machinist and engine builder.
Shannon