Thank you all for your comments guys.

Yes wombat I have an A15 at home which I will most likely be getting recond/worked, and a mate has these webers which came off a ta22 celica. So if I do end up buying these carbs then I will have to start work on my A15 motor, so that I would have something to put them onto.

I still need to buy a twin carb manifold though.
Anyway with the A15 motor, I just want to work it a little, something thats similar to my worked A12 that I have in the green coupe at the moment.
eg: mild cam, bored out slightly, port n polished, shaved head etc
My worked A12 is a great reliable, powerful and strong little motor, so if I can get my A15 motor done very similar then I would be very happy.

I will keep you all posted on how I go.