How many attacks can the Eight Trigram justu go up to? The Eight Trigram justu is a taijustu that uses the Gentle Fist style, which is passed down in main branch of the Hyūga clan. In both the original and Shippuden, Neji uses this ability multiple times through the series.

So far, we have seen 16 Palms, 32 Palms, 64 Palms, and 128 Palm (which is only seen during Neji's fight with Kidomaru.)

In that pattern, the amount of attacks are doubled for each variation. Is Eight Trigram justu limited to 128 attacks? If not, what is the highest number attacks it can go?
It wasn't stated that there  was a limit to the amount of attacks he could do but remember that jutsu is used to close off the chakra flow and 128 palm is enough to do that, anymore than that might 
* not have any effects
or
*the person might died