Machine shop valve man says no cracks but all my valve seats are completely shot. I am putting in 2.09/1.72 valves, wont that nullify use of seats with SS valves? I know some will not put hardened seats in 333 heads with over sized valves, how much risk is there in that? i wasn't aware these heads had hardened seats on intakes anyway. As always, your comments, suggestions and opinions are very much appreciated. Seems like every time I start I go back 3 steps. I will buy valves this week. Thank you.