Like others said you will need some good flowing heads, high quality rocker arms and push rods, and big enough cam to let the large displacement small block breath. Otherwise it will be like a truck engine all out of breath at 4500 rpms.
I was leaning towards the 190 Trickflow heads and some nice 1.6 rockers and a good size cam that will work well with the sniper efi and produce as much power as I can.