Went to pick up a set of 462 heads from a guy today, and one ended up being a 461. I got the pair anyhoo. There is an advertised cc difference of 3 cc's . If the runners are the same, will this cc imbalace cause a world of problems? I'm thinking I should just buy 1 more 461 and 1 more 462 and have matched sets. Anyone care to respond to this one?