i recently purchased brand new skunk2 valve springs and retainers for an h22 head....i had the machine shop do a valve job before installing the springs/ret..... according to skunk2's website, the seat pressure for the h22 springs should be 100lb....the machine shop told me that the seat pressure was 80lb....are the springs defective? i thought this was a pretty significant difference. help would be appreciated...thanx (i just sent skunk2 this message also)