Hope someone has had this issue before. I spent this winter going thru a 350 chevy engine finally got in done and instaled in my 1958 60 series truck. fired it up yesterday ran like a top. The problem is the clutch acts like it is not disengaging. But when I crawl under the truck and someone pushes the clutch pedal in I can see the clutch open up, If I start the truck in gear it will take off even if the clutch is pushed in all the way. Does anyone know what I did wrong.