Can I just say thanks to every one that has advised, suggested and put me right.
And one other thing, Man can these things handle, went out last night for a blat with a mate with his car, nice gentle stroll round the New Forest, then a blat on the A32 back to the Pub, corner like they are on rails (even with skinny tyres)
Only had one minor problem though, no vent in the tank so i thought i had run out of petrol. let the cap of with a hugh rush of air, tried to start it and it was fine, just need to vent the cap now.
Accelaration is out of this world, my mates 1700cc with twin webbers isnt that much faster, although he does have to slow down for motorcycles around roundabouts.
,<<<permenantly fixed chesire grin