ok little update: my shed got robbed about 2 months ago, they stole my HKS T51R :( (along with more turbos, a ktm dirtbike and more car parts) so progress stalled for a bit. since then, ive bought another T51, this time a Garrett T51, so its slightly larger, and has a 1.2 A/R on the rear big thanks go out to Hiro Performance, they have sorted me out with Ovate wire heavy duty Atomic Race Valve Springs, my 2nd Magnafuel ProStar 750 fuel pump, filters and fittings plazmaman billet oil cap ive also bought a 75mm bbk throttle body, which will do the job nicely