/six head work and porting

Hello , I am new to this GREAT board! Can anyone refer me to a place that does good slant six head rebuilding and porting? I live in South Carolina. Thanks, James
I am having mine ported by a member here right now...1wild&crazyguy...Pm him for details.He got numbers very close to strokerscamp head with small valves(1.70/1.44).