bbc
It should make 700HP no problem.
I would suggest a solid roller cam "around" .713 lift intake and exhaust
and 265/275 @.050 Duration.I would like to see a little more intake runner volume than 315. AFR's are nice and it will be a street motor,but 540's (cid) seem to like 345. Some folks on this forum have more experience than I do and they may have better suggestions. You will make 700 HP .I had a 12.4 to 1 dart headed (345's) out of the box- 496 BBC. in my case the intake runners were a little big, but I had the heads they were new and they would work well if I decided to spray it.It made over 700 hp Similar cam specs
Good Luck
Also the cam companies out there will give you advise and RJ has some very smart people that may help also