How can I add 200-300 pounds to a giant pumpkin in less 60 days?

Question

I'm trying to grow a giant pumpkin for a festival near my home. How can I put that weight on in less than 60 days?

Answer 1

Knowing zero about pumpkin growing, I would venture that the only way would be to cheat. Drill a neat hole and insert lead weights. Cover it up via pumpkin repair in the usual manner. Or try plant hormones or fertilizer.  I still think that's cheating.