Manny pacquiao vs willie pep at 135?

manny pacquiao as we all know is an 8 time world champ in 8 diff divisions. he is a beast packed with determination, amazing speed, power, skills and heart that is equal to none. pep on the other hand is the greatest featherweight ever so i thought maybe a fight at 135 would make it far more exciting. this willie pep is simply an art in motion, his defense was next to none, he has built a record that would last for ages. a fighting machine in pacquiao against the greatest defensive fighter of all time, exactly how would the fight be? please tell me exactly how would the fight go?