Missed on this combo?

So do these heads come with 2.05 or 2.08 have heard both?
J. rob so the larger valve is what's making the seat a mess, as in there is not enough seat material to do a proper valve/seat job?
aka a 2.02 would actually perform better do to material there to make a nice top cut, wider, slow the air down more efficiently in to the combustion chamber?