I've just about completed my 2530 depending on power goals is not a cheap build. I hate to add the final figure but all I can recommend to it once do it right. Remember poor man pays twice List of mods include Series 2 rb30de block Ported rb25 head Tomei valve springs and retainers Camtech 272 cams Garrett gt42 Npc twin plate clutch Bosch 2200 injectors Microtech lt16c with flex tune List goes on