Im running a 99' 379 with that setup now... 13speed single over, 3.21 rears, 22.5LP
Also a 2ws with a marine cam, 58s, high output cat turbo, and a 7cz file on the ecm is pretty strong too
Maybe 5000 above or below
There's a 6nz can't remember which way it goes...500 and above or 500 and below on the last digits on the serial have bigger injectors, heavier...