Sure they could. But they might inflate the costs a fair bit as well as the scope of work. What EFI hardware are you comparing to though? Not sure I follow what you are saying.

Keep in mind some really simple turbo setups have pulled very impressive results, in particular topgears A12 turbo draw through, he manage 100kw at the wheels, pretty impressive really.

efi hardware is a shop they sell those quad throttle bodie setups http://www.efihardware.com/products/c57/4-Cyl-Throttle-Body-Kits i was thinking the throat id would be to big for a 1200cc engine and they look large in size. plus i got heaps of zx12 throttle bodies layin around

Oh righto, I only knew of the Injection Perfection modules. I do remember those ones being advertised here though.

I reckon you could choke them down somehow. You'd have the benefit of having the manifold already(dcoe) if you went with the DCOE throttle bodies.

I'm not sure, you can argue that they're too big or just right but if you'd want a street driver I would have thought they were a little on the big side, but like I said it depends if you could choke them down or not.

Give it a go seeing you have the throttle bodies available.

EDIT: hang on, they have 40mm sets available... those would be fine, but the price?!