Tighter than a nun's chuff, this won't do at all A.L Developments
Those new high-spec austenitic stainless steel +1mm valves from Race Engine Components are indeed the dogs danglies, but they also have a longer stem!
Back to the machine shop we go, fortunately it's an easy fix
Just to update everyone, the head is still with the engineer having the valve stems shortened
With the Bank Holiday and me being overseas for the next week or so, being realistic I think the earliest I'll be collecting Monty is Saturday 16th May.