Ive been running 5km 3 days per week at a pace of 6 minutes per km. Do you think this is enough running? I'm 5'11 95kg
Zzzz. As a heavy? The Rowing Machine (Concept2, hopefully), Track (Sprints) and Swimming are your friends. :good Focus more on your sport for endurance but use what I mentioned too. Running 5km's for a HW is mental.
Don't have access to a rowing machine or a track. I do hill sprints occasionally. Not much of a swimmer either.
Only you can answer that. How is your stamina in the ring and what else do you do as far a boxing specific workouts?
Havent had a fight yet. I am looking to have my first fight this year. My stamina is decent when sparring and pad work. I train boxing 3 days and weights/conditioning 3 days. Boxing workout is usually 3 minute rounds: 3 x skipping 2 x Shadow boxing 2-4 x Sparring or Pads 4 x Heavy bag 2 x Floor to ceiling bag 2 x Speedbag
Its your training, other people's opinions are irrelevant. Your training should consist of what is required for you.
I don't know any boxer who only does boxing training, 3 days, but if it works for you, stick with it. The acid test is how you do during a real fight.