Give me some advice for RB 25 to be RB 25.6 ......????

[Orifec_a31]

Hi, i live in thailand BKK. now looking for information to modified my RB25 engine in Nissan CEFIRO A31 that's popular in thailand.so i need some advice or commend for my last step for Drag racing.This is my detail

engine - RB25DET R33 GTScrankshafts - RB26dett std.conrod&bearing - RB26dett std.connected conrod - ARPpistons - RB26 oversize 87.0 mm.camshafts - JUN 264 in. 272 ex. lift 9.1camgear - OS spring vale - rb25det std.spark pug - HKS M45i no.9headgaskets - HKS 1.6 mm.oilpump - JUNturbo - Greddy T88-34D *18 cmwastgate - Greddy type Rex.mainfoild - Greddyintake mainfoild - Greddyintercooler - Trust rb26 spec 4"thottle - VH45 80 mm.injector - SARD 1000 cc.fuel delivery - SARDregulator - NISMOoil cooler - Trustengine managment - HKS F con V pro 3.1cluth - OS triple plategear - RB25det std.LSD - Nismo 2 way 80%

tuned by OGURA (used to be first hand HKS tuner)

finally...how can i get to order and pay for some of parts in classified i don't have to know how?

thanks......