engine build help
 

i trying to find a combo for a sbc that can make 485+hp and equal torqx. wheres where it get tricky, i what to spin it no faster than 6k less if possible and i want the torqx to be in by no more than 3800/3900. is this possible or am i dreaming?? i really dont want to go bbc to get it done if i dont have to. any suggestions will be great thx.