[C and W Racing]

Carlos, Have you had the dist out, or done any internal work on the engine? It sounds like the clearance between the dist and oil pump drive rod is too tight, which is forcing the dist shaft into the dist housing. If that is the case, I have seen it snap the oil pump housing. If you haven't done any work, sounds like the dist shaft is binding in the housing and trying to seize causing the dist to move
Chuck