Hard to tell from the videos but I think that noise is under the carb, not coming from the carb.
Hopefully measuring every pushrod location individually will find a problem somewhere.
so, i was measuring all the pushrods one rocker i noticed has alot of side to side play removed it and saw the push rod was bent. greaaat sounds like i have alot of issues to figure out, what would cause a push rod to get bent?
