If you’re confident you can improve your score to 505+, retake in September and submit applications in October. (Obviously apply to a throwaway school prior in order to expedite AACOMAS processing.) NYITCOM tends to stop interviewing fairly early in the cycle, but you’d probably still have a shot at Touro-NY or LECOM-Elmira if you were to apply sometime in October.
Applying with a low MCAT score and then updating with a new score isn’t a good strategy. Your application might be filtered out by the time the new score is released, and adcoms receive too many applications to be able to really keep up with updates.