Hi,

Here in the uk that engine is used in the Fiesta st150 so if you google that, some suggestions and help should hopefully appear.

My limited knowledge is that it is a very tunable engine with the limitations being the wafer thin piston rings and they dont like really high revs, the chains and tensioners i believe are weak. Very easy to hit the 200bhp mark and i believe cams and headwork will get you well beyond. Mountune did a 180kit as well so they maybe worth a google as well as dunnell.

Hope that helps