The Flash and Shazam have been profitable units of the Justice League. They are the most powerful and valuable heroes of the same. But if it is the case with the speed then who is faster? It is Wally who has proved himself as faster than Billy’s magical lightning.
Wally had given the power of speed when he was blown by lightning which was mixed with chemicals. And the Flash and Shazam are well recognized for lightning. The Ancient Wizard was the reason for the powers that Shazam had received. The Ancient Wizard had given him the power of Gods that had included Zeus (the God of Lightning). He can transform into Shazam by using the lightning bolt. Wally stopped Billy also when he was trying to transform himself.
Billy Is The Real Shazam
Wally with Linda Park was living at high tech Solar City Island Resort. In The Flash #107 by Jose Marzon Jr., Tom McCraw, and Mark Waid, Wally was not happy while staying with Linda Park at the resort because there was not much to do in the resort because it was not finished and furnished. Linda encouraged Wally and told her about something that was disastrous outside. Where Billy had decided to transform himself into Shazam; when he said “Shazam!” Wally interned and stopped him before the lightning bolt had changed him into a hero.
But ultimately the lightning caught him and he had changed into Shazam i.e. the heroic form. They both together then had used their powers and strengths against Shadow Thief, the villain, who was turning innocent people into Shadows. They succeeded in putting him down and Shazam called “Shazam” so as to brighten the darkness all over. This had allowed the Flash and given him time to take down Shadow Thief.
Wally is the fastest flash. Though Wally has tried in keeping the kid Billy away from the lightning bolt to keep him away from dangerous situations.
What he was not aware of is the kid i.e. Billy is also a Shazam.