Are you aware 1.6 Zetec-S(E) with 120 bhp is a TI-VCT engine??? Look out for a ~100 bhp one (Puma, Focus MK1, Fiesta MK6 / 02-08). Even with a pair of camshafts and a good engine management and setup a normal 1.6 will put out much more power than a standard TI-VCT one.