Doin some research...
and found that the Mazda engineered MZR is also known as the Duratec in Fords...
The small I4 MZRs replaced all of Ford'z Zetech engines...
So if you are looking for cams.. look around for Duratec cams... for the focus and fusion...i think
based on the fusion's engine specs, they are using the same 2.3 MZR engine found in mazda 3s and 6i...
its all because of FoMoCo... that these Mazda engines get renamed to something else.
Crower makes cams for the Duratec 23.. which should fit into the 2.3 MZR...
though i don't really know for sure.... you should call up crower to be sure..
also compare engine model numbers.....
: : EDIT : :
Due to the fact that the MZR engine is now going to be found in many Mazdas (3, 5, 6, MX-5, CX-7) a MZR tuning section should be put inplace... instead of an engine performance section for each type of car...
MZR tuning should be broken into NA and FI and thats all...