Out with the 318 in with?

Package 8 is what I'd go with Max torque and HP with almost stock parts ?? He has some impressive numbers ! Stock crank rods and piston , reworked heads ,RPM intake and 484 l 284 d cam ? wow !
My 1970 340 30 0ver 10.5:1 Mahle ,forged ceramic coated pistons , ported heads . a bit more cam with 750 Carb AiR-Gap intake windage tray high volume oil pump makes 412 HP 401 torque , so if you go with his build your doing GREAT !
Impressed , hope you can get the same numbers as he does
2000 would work 2500 work even better m and gears 3:73-4:10 if your going torker

I think those numbers he quotes for HP and torque are , what cam I say , wishful thinking ? I have built a few 360, 340 and 440's and had all of them put on a dyno ,not some plug in your parts and insto presto here are your "hp , torque and 1/4 mile times " , or maybe he has god in his shop ,cause those numbers are damn good !