Installed brand new street/strip 2004r transmission behind 400 cid sbc. I was replacing a tired turbo 350. Sounds like I didn't install the torque converter on properly because when I started it up, it made a terrible pinging sound like I stripped the input shaft. Shifiting gears didn't do anything. So I need advice on what to do next after I pull the transmission. Is the torque converter shot? What do I look for? Is the damage limited to the input shaft and torque convertor? Can the convertor be saved?