Need another one

Would be keen but I've already got a ls1 and keen for the rb , decided I'm just gonna build a 25det with all the good bits and see what she makes

Hi all , I'm going to build an engine for a 32 gtst from scratch, I'm going for 500hp at the rears , is it worth building a 25det or building a rb30/25 , some pro's and cons would be awesome , cheers:)