Why don't you do something constructive, like call a machine shop and talk to main machinist, ask him the width and depth of the holes he drill in the counter balancers and which ones, for an internally balanced cast crank, like Scats 340/3.58" throw and provide him with my forged piston weight icons 741 360 piston .070 over with pin wt and my 715gr H rods....and post me an honest answer.