Right, I'll try make this as quick /simple as I possibly can! Bought a hks t04z turbo kit from a friend to use for when I build an engine which can take what I throw at it; have always planned on forging the spare engine I have got but not quite to take the power I'm now looking at running. So the turbo is aparently rated to 720hp, but I'm looking more around the 5/550 sort of mark. I'm looking at a parts list and was wondering what sort of things will be restrictive at that sort of power. Main things I'd like to know are -what cc injectors? -will the standard fuel rail hack it? -inlet manifold, will I need a plenum? -headgasket, how thick? -Will an8 fuel lines on a Bosch 044 pump(from swirl pot) be enough flow? My list for the build so far is- Manley forged rods Cp Carrillo pistons Hks cams Arp headbolts Arp main studs ACL mains Genuine chain kit Genuine gasket set (no h/gasket) Genuine oil pump Oversized/baffled sump. Any info any one has I'll soak It up Thanks!