Mountune provided Piper cams and valve Springs - fitted years ago.
Here is the video:
https://www.youtube.com/watch?v=DDO1WcQ0GCY&feature=youtu.be

The car made 183bhp (not 185), torque 158ib-ft(214nm). So as well as better fuel, may need checks on valve clearances.
Here is the dyno printout:
https://hosting.photobucket.com/images/ah149/steveb_de/fiesta_st_dyno.jpeg

https://hosting.photobucket.com/albums/ah149/steveb_de/cars/fiesta%20st/IMG_1140_zpsp61vtimk.jpg

https://hosting.photobucket.com/albums/ah149/steveb_de/cars/fiesta%20st/IMG_1138_zpsrhdgqkak.jpg



Edited by steve_de (29/10/20 11:42 PM)