So I'm picking up my Fiesta next weekend, all the bits you would usually do have been done. So the 1st thing I'm looking at is upgraded camshafts. I've just been on Pumaspeeds website, they offer their own brand cams which boat the need not to replace valve springs and they also sell the cosworth cam shaft which also offers the no valve spring change but what I'd like to know is what are the differences the warent the price difference.

 

Pumaspeeds expensive.

Shop around and get the cosworth 200 spec cams