Old school 911 Turbo engine knowledge

[GT Two]

What specialists have the knowledge and worked with these cars when they were current?

Looking for a specialist who understands fuelling, tuning, and has a lot of experience with the 3.3 turbo.

Can anyone recommend anyone in the South East or London?

Thanks!

[GT Two]

I have spoken to Dom previously who seems like a very decent chap, just a long way away from me.

Have booked the car into RGA in Vauxhall as he seems very knowledgable.