Pedal has to go to floor and still get some grinding

Did a 4-speed conversion on my 68 Notch and just can't seem to get it to work right :cry: Seems like I have to push the clutch right to the floor enorder to engage it and even when I do that I will still get griding when I go into 3rd if I don't hit it just right. Seems to get worse actually the hotter the car gets?? Took it for a cruise today and went to back into the driveway and it was next to impossible to get it in reverse without it grinding heavyly and the clutch was all the way in ](*,)
I have tried legthen the rod as much as I dare I think, have about 1/2" of free play at the top of the pedal. I have taken big pedal spring out upon Brewers recomendations and didn't seem to make much difference, actually maybe a little stiffer pedal feel??
Could it have something to do with the Z-bar I had to fab up and not having enough throw???
Combo is 451 ci, McLeod, diaphragm style clutch, flywheel, and prssure plate (all from Brewers), Lakwood bellhousing and stock A-body pedal assy. I believe it was was the one with the longer 6" throw?? I would like to replace the pedal assy. with a new one though as I had to install a spirng on the brake pedal so it would return all the way.

:help::help::help::help::help:
Derrick