Anyone running a hydraulic clutch with their 833?

i have the chucks cladssic in my car now. the pedal is horribly hard. just as bad a the stock stuff. some said i should raies it up where it is mounted to the pedal. maybe. but if i go up higher with it, then it does not line up correctly under the hood. no flat spot to mount it.

now i read that i am supposed to use a different clutch fork. what is up with that?
what is the length difference in them? or i should ask, what is different about them?