Yeah the engine was from a CF3 156. All went in no problem. Few little connections were slightly different or placed differently. But nothing that couldn't be fixed with a bit of a work around. Its pretty much a straight fit from 1.6 > 1.8
Really enjoying the 1.8 - I don't know how to describe it but its just better. More torque. Longer gears - still feels rev tastic and the same running costs as the 1.6. Who would have thought the extra 20hp would make that much difference.
Anyway I'd keep it simple to start. New Fluid through the system can make a world of difference.
Once that is out of the way I would look at giving the calipers a bit of a clean and greasing the pistons in and out to make sure they move freely.
Then if that hasn't helped improve things I would look into new pads and discs.
Brakes are usually way over specced for the mass of a car. If you are not on the track you won't need bigger discs. After all are you getting brake fade?
Or is it just the feel you are after. Might be worth checking the vacuum pump for the servo isn't split too.
Alfa 166 2.0 Twinnie - LPG and a few trick performance parts