Answer: Keep the earlier pumpkins and remove all later pumpkins immediately, but keep the vine itself growing as vigorously as possible because this is what will fuel the pumpkin's growth. When you can tell which of the earlier pumpkins is looking the best, then remove all but one. The vine only produces so much energy and you want to direct all of it to your one big pumpkin as soon as possible.
There are lots of tricks and tips for success with giant pumpkins -- books have been written on the topic! If you're serious about competing, check out the World Pumpkin Confederation Web site for details:
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