70 c10 clutch adjustment question

[1970C10truck]

Hi, I'm new to the 67-72 trucks and the manual 4 speed that came in it. My truck is a 1970 C10 with a 350 and sm-465 transmission. I bought this truck about a week ago for a project. I noticed the clutch pedal has to pushed all the way to the floor before it disengages and also seems like it fully engages after the pedal is let up about 1/2-3/4 of an inch. Will an adjustment of the linkage cure this and if so can someone explain how to do it? Or does it sound like it needs a new clutch?

Also the clutch pedal almost never returns back up all the way on its own. It seems to hang up a little bit before it gets to the stop. Thanks in advance for the help.