Big cams and heavy valve springs seem to be the issue I have come across (causing the cam belt to get a wobble up). Not yet on Vi-pec for myself but definatley an issue for Motec.
GTS/GTR Vi-pec plug-in's now come with a V88 top board.... No more wasted spark for those of you that are worried about it. My own car start's to run into spark issues @ 450KW on E85.
All the base settings need to be set. First of all CAS to ECU need synced up for timing accuracy in the ECU. Base idle will need more air now due to the bigger than stock cams.
2.6 Crank
CP pistons
Greddy(Carrillo) Rods
Greddy main studs
ARP head studs
Nitto H/G
Type B poncams with VCT
Head was cc'd to get the comp I wanted
No porting etc.