the head gasket has gone on my car and im in the middle of taking the head off and i need to know what the best type of head gaskets there are and what would be best for me also along with it coming off i am getting it ported and polished along with skiming ect but i was also thinking about uprated valve springs while im ther?? can any one tell me the best ones to get and from where and also what other modification i can do while the head is off the car?? any info is helpfull cheers.