well after a long wait i finally got the studs out of the cylinder head ready to put the manifolds on but there was a problem. where the studs were, the holes all need re tapping as it seems that the previous owner broke the studs off inside the head and redrilled them but not correctly. im obviousley going to have to take the head off. should i bother with this head or get a new one ? how much do they cost these days - casting number is C8VE.