PB FC3S

I have read a lot on other people's LM7 builds. Making this thread to find out more and also see if what I've collected is correct. I am looking for around 400rwhp. I'd rather not mill the heads or bore the block. I will be buying ls6 intake and 255lph walbro for sure. Not decided on fuel rails or #injectors yet. Also wondering which springs, pushrods, cam, and which ARP bolts to get.