where am I going wrong?

So my son and I put the engine trans back in his car, 1970 Duster 318 a833od, it was originally a 3spd std car, when he got it there wasn't a trans or associated parts, just the pedals, the problem we are having is with the pedal, when it goes to the floor it wants to stay there if you give it a little encouragement it will come back about half way, the movement below looks good, the clutch diaphragm is going in and out with the bearing but I have the adjusting rod or spoon almost maxed out which isn't right, the spoon I am using was from in my shop it is 5 1/2 inches over all length, is this right?, I believe I have the proper fork, I have many to choose from and the one I am using is the same as the a833 I have in my 56 Dodge which came from an a body, the spring on the pedal seems very strong, even with no trans in the car when you depress the pedal it stays on the floor due to the spring?