Ghostbusters Twinkie math

Watching the original Ghostbusters movie the other day, I perked up when Egon said "Let's say this Twinkie represents the normal amount of psychokinetic energy in the New York area. According to this morning's sample, it would be a Twinkie 35 feet long, weighing approximately 600 pounds."

Is that a reasonable weight for a Twinkie that size? Assume a standard Twinkie is 3.9 inches long and weighs 1.4 oz.