Get some tips on oil control from here
http://www.skylinesaustralia.com/forums/in...howtopic=110680
I have 2530s and i think there a good street setup.(think the 2560-7 are almost the same -5s are closer to GT-SSs)
Lots of people like the nismo copper mix twin plate, drives like normal rated at 700-800ps
Im running tomei 260deg in/out poncams, fit straight in.
Rods are up to you i use them but others dont.
Trust front/dumps are about the best or if you have fronts can just go HKS/tomei dumps
N1 oil pump ok(im using one) but if you have the money for a JUN/HKS/TOMEI mite be better.
no idea on head gasket or rod bolts but i used tomei full metal gasket kit and ARP head bolts.