From what iv been told by people.owning both the 1.8 and 2l
The 1.8 is a more rev happy engine but the 2l has more low down grunt n torque to it..

Zetec of carbs should see around 150-160 bhp, altho it's a step backwards to go from EFI back to carb imo look about for motor bike throttle bodies still cheap set up but will save alot of hassle rather than changeing fuel tank lines etc