curious are you getting 300degree fuel rails with the 740's? Also I recommend getting a 3"SZ DP just because I wish I would have and there is NO ONE better then Kyle to be buying a engine from and I know you wont regret that choice one bit. MSP mani's will help lower spool time (along with a 3"DP setup) and they are very good quality.
Dyno numbers are hard to say really though. I would say you could expect around 600hp +or-
I guess also expect to be paying for a new EPROM as you dont have that listed.