when you anneal it make sure you clean it properly.
use only 3BOND and its 1211 from memory. dont use anything else as 3bond is the best. match the gasket to the bores and check that the steam holes are drilled. ive yet to have a copper gasket i havnt had to clean up and ive used all avalible in australia. oring the block and put a reciever in the head or oring. its better to get them properly annealed.
mick