Did you bleed the system at both points at slave cylindere and the under hood passanger side location? This usually requires several tries to get all the air out.
Is the slave push rod properly lined up with the clutch fork. There is a dedent in the clutch fork that the slave push rod fits into for proper alignment. There should also be a small amount of grease with Molydisulfide in it placed on the tip of the slave push rod.