After a lot of scrounging, found a Bosch part number (0 280 160 548) for one at work in an old catalogue, rang Bosch and ordered one, should be here tomorrow at a cost of $70 or $80 bucks! And it's definately the Tickford/XR6 one, double checked and the part numbers different.
Not bad when Tilford quoted me over $300.00 and City Motors $230.00 new. FTG was $100.00 second hand.
Anyways, just thought I'd share.

O, and how do I change em?

not sure how to change em, lbut tell us wot diff it makes!

Probably won't be able to as I'm changing to 10mm leads, Tickford head, Vaporate Fuel Saver and the larger regulator all at the same time!
It ended up costing my under $60.00 brand new, dam good price!

um dont u remember pulling the one off my car the other week, its 2 10mm or 8 maybe cant remember prob 8 actually just above the fuel lines