Speeding up bruteforce cracking time

[Leaver77]

If there is a way to make it search the 8 character password using min and max of 5 uppercase letters in random positions and  min and max of 3 numbers in random positions. This would speed up cracking time significantly. Instead of looking through all the hashes in any random order like this... 87989943, BB48N679,BBBBBN98 . They would all have 5 uppercase and 3 numbers like this ... TAM43PR9, 8Q6MTW3D. not in fixed positions like this.. W9K8DS4H, Q4H6GW8K.