RB30DET cefiro

a31 cefiro build rb25det neo head rb30e bottom end him I am after any info anyone has one my car I'm building I'm having some issues find info the engine is all built and was tunned ect in another car iv had my loom custom maid to suit a31/c33 but I'm still having a few little issues with it running theres a few plugs I'm unsure on I haven't had any dealings with this sort of motor before so its all abit confusing main issue running its want idle and detonation straight away its running wasted spark set up is tunned for it with a vg30dett ecu chiped and tuned for 253kwwhp on 10psi 500hp walbro fuel pump I'm just after any info anyone might have on some things to try video tutorial links that arnt a waste of time ect the r34gtt manual in English would be amazing if someone has it and a link for the a31 cefiro factory rb20det auto model