help? clutch wont disengage

I just switched over from auto to 4 speed and I cant get the clutch to completely disengage enough to put it in gear. Its a 66 dart with an aluminum od bell housing. I talked to brewers they said it would work if I used a 66 clutch fork with a pivot they sold me. My pedal goes down about half way like it should and then seems to bind up. I have the clutch rod adjusted out to the point where it is firm against the pressure plate so there isnt any more adjusting room to go. If I push in the clutch all the way it will start in gear. I did have to fabricate the bracket for the zbar pivot on the bellhousing it it level and seems to be on the correct spot.