Need to pick someones brain.

I have a VH commodore
Injected 5L
T5 manual

I have been having clutch issues from the day I bought the car, pedal not sitting right, clutch slipping etc.

I removed the old clutch, exceedy sports tuff

I have bought a heavy duty clutch from NPC performance clutches, new cable etc.

I have installed the new clutch, cable and cant get the clutch to disengage properly.

I have had the box in and out 4 times making adjustments to the clutch fork ball. It is adjusted the maximium it can be, there is just over 5mm free play.

I can just get the clutch to operate properly but the clutch pedal sits about 200mm above the brake pedal.

It has me stumped and I am at the point where i am about to swap the car for a VT.

Is there a difference between an 8 and a 6 clutch pedal? How do I tell the difference?

Has anyone else got the same conversion in there VH?
What components were used in the clutch setup and have you had any dramas like mine.

thanks for taking the time to read

Jason