I can't see it making much more than 600fwhp, not enough head/small cam for them cubes to make mid to upper 600's in my opnion.

My mates 440 Dart with 12.7:1, Eddy std port MCH 325cfm heads, DC.590 solid purple cam, 1050 Dom., Victor int...just managed to hit the 600fwhp mark according to best mph/weight. and that cam was done at 6600rpm, car would slow if he shifted it over 6400 through the gears.