What's your score breakdown? If one side of the score (verbal/quant) is substantially lower than the other, you could put some solid effort into the lower side and quickly increase your score.
Honestly, I don't know of many accredited MBAs where a 510 GMAT will be very competitive. If you can get it up to 560-580 you can look at an unranked school like South Florida or San Jose State. 600+ opens up a lot more options though, like Kogod, UMass Boston, maybe even Georgia State.
What's your score breakdown? If one side of the score (verbal/quant) is substantially lower than the other, you could put some solid effort into the lower side and quickly increase your score.
Honestly, I don't know of many accredited MBAs where a 510 GMAT will be very competitive. If you can get it up to 560-580 you can look at an unranked school like South Florida or San Jose State. 600+ opens up a lot more options though, like Kogod, UMass Boston, maybe even Georgia State.