hey guys, just after a bit of info if anyone can help, i have been offered a 40 mm dellorto carb for my 1200, will this make much of difference without changing anything else (further mods will be performed, when the monetary situation will allow) what would i need to do to get it running nicely with this dellorto. basically that question i am relly trying to ask is will this single 40mm carb make the engine go harder than the standard hitachi (i think) without too many other mods.

Not really alot of point until you get an exhaust. With these two things (intake/exhaust) done you will have a much freer reving engine with some extra top end power.

Yes,But you should also get an exhaust and a cam.

thanks for the help guys, where would i start looking for a manifold to suit an a12 and single dellorto

TRY HERE Feral often has items of interest & they are not always on his website, so it never hurts to ask.