crimsonphoenix
Officially Unofficial
Bart Allen - the grandson of Barry Allen, the second Flash, and Iris West-was brought back through time to our century after his father was killed. At Iris’s request , Wally West, the current flash began to teach Bart how to fit into his new era and get a grasp on his powers. Frustrated by his nephew’s lack of focus, Wally turned his attention elsewhere. Bart became known as Impulse and set out to become a superhero in his own right.
Bart Allen’s powers mirror those of Wally West, with one major exception: Bart also has the ability to remember everything he reads at super-speed.
Its kinda confusing about impulse but i got this info from my Teen Titan's graphic novel.. i hope it helps.