Yes, it looks like it's for a mark 1 motor so it should also fit 2 litre mk1 Vitesse;Triumph 2000 and possibly 2500 engines.
It sure looks pretty but it's £350, will gain you 2 - 3 hp at best and could even lose engine power without other mods, like the triple Dellorto setup also on ebay.
http://www.ebay.co.uk/itm/Triumph-GT...item336e40dad3
Is it just me who thinks that around 160bhp/tonne should be quite scary enough in a car where your bum is practically touching the road?
