it was 125 for both heads to cut an 8 bolt head to 14 bolt , thats on the invoice kidglok posted
and 750 for a competition port job
kidglok invoice included custom setup going taller on the valves for jesel rocker setup and high lift billet roller , and a heavy spring package with TI retainers, Tom also matched a race intake to the new opened ports ( kidglok provided the intake)
with your 212 you wont need the heavy spring package or tall valves but you may need springs to be done depending on what was in the 8 bolt , and i would also change the valve seals to manley PC seal
once you have them machined for 14 bolt they wont accept the stock style rocker shaft
youll have to either go T+D jesel style (950.00) or cheaper chevy style scorpion rockers