If you're using shims that thin it means the valve seats and/or faces have been cut a lot, perhaps too much. But maybe you know that. Norman Racing has told me shims down to .030-.035" would be OK if machined well. I've never gone below .050" myself. If you've torqued on the head gasket at all I would not be tempted to reuse. At 15 lbs it falls into that "probably fine" category and is not harmed, but be mindful of how much work it is to change if it's not OK. Non-Reinz gaskets are only $25.
Andrew -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]

