Hi Carl?
I'm not 100% on which Curly is which.
I would have replied to you txt but it would take me a week to write it.
What model 500 are you looking for and do you want a restorer or racer.
I have an S (first model I want to keep) SA, SB and RC.
I total I have 5 with 4 needing heads done up so if you can find out if the guy in Qld still does them we could probably give him a couple of weeks worth of work.
Do you know if Peter Campbell or Chris Dowd have ever done xl heads?
Thanks
DOK
PS give your mate my mobile number and I will tell him what I've got.