Re: Frustrated Hello!!
Hello and welcome. Same thing happened to me a couple of years back - total bill was £1600 for a complete top end rebuild. Now I do this stuff myself and I'm guessing your garage was not Alfa trained because you have to use the correct tools - it is almost impossible to set the cam timing correctly without and I'd suggest that is why the car has little power. Even if they claim to 'mark' the belt and pulleys as soon as you dismantle the top end there are many variables to control toget the correct timing again.
Ask them if they had the correct camshaft locking tools as a starter.....and if they say yes ask them to show you that they match your engine size....... If they can't then its a bodge I'm afraid and its their call to sort it. if you're anywhere near Tewkesbury I might be able to help but otherwise good luck.