This is a spec I had from his car (cant remember when though, probably not up to date any more), when it was at 320WHP - and its NA
Internals:
Weisco Pistons (.020 over stock)
Eagle rods
ARP rod bolts
Fully balanced and blueprinted - not only balanced as individual components, but also balanced as a rotating assembly
OE Nissan bearings
Full Ported and polished heads
5 angle valve job (stock Nissan valves)
Tomei 268 cams (268 duration, 10.5mm lift)
NISMO valvesprings
NISMO headgaskets
Lots of time spent porting stock, non rev up lower plenum -we logged over 100 hours between the heads and plenum, going off recommendations from MCR Japan, as well as things we found on our own.
Motordyne 1/4 inch spacer
Unorthodox underdriven crank pulley
New: water pump, rev up oil pump, idler pullies (OEM)
Final Compression checked in at 11.3:1
Misc Power Stuff:
Gruppe-M Carbon intake
3 inch MAF housing
Crawford headers
HKS DLI II
NGK Iridium Plugs (LFR6AIX-11_
Sun Hyper Ground
Fujitsubo Y pipe
Fujitsubo Legalis R Titanium exhaust
Resonated test pipes
Drivetrain:
OS Giken Super Single Clutch/Flywheel with Aluminum cover
3.9 final drive
Cusco RS LSD
NISMO finned diff cover