you mightve seen my thread about my engineering project next year, and ive decided that im going to be rebuilding and modifying an engine.

I was going to build a pinto up with fast road cam, twin carb etc because they can take all kinds of abuse and are alot more simple than newer engines...
But ive looked at the bang-for-buck and it seems you get more for your money when you build a zetec

what are the pro's and cons of each engine? and just out of curiousity can someone spec me a 250-300hp zetec turbo yet still being bullet proof (if theres such thing) and the rough cost of it all?
also what hp can you get from tuning an st170 engine yet keeping it n/a?