I have dyno #s from a partnership that didn't quite work out from a few years ago, the dyno #s were 659hp and 588ft lbs, this was with my heads and cam intake & carb in a 416" with steel rods flat tops 0 deck my combo is 414" flat tops and .018 in the hole for the bme rods, we have dropped cam duration from 280 to 260 @.050 last year to keep the rpm down to 7k max with the hope of more torque, engine seems to run the same times after some tuning and tire changes just less rpm,I just had a x block sonic tested and was worse in some spots than the 360 block we are running now @ 4.06 good thig was it was cheep but it does seem ya get what ya pay for in the end, What is the best block to build from for 700hp?