Yes riggaP (almost typed niggaP there O.O my bad) the 10k has been spent on the entire low + top ends of the engine + running system. IIRC he's got racing spec belts, a spiralmax intake manifold mod, extracters, new exhaust, widened valves and i'm probably missing something, but that's generally the type of work he's done. Very small modifications that can easily be done by himself when he's got the time at home. The shift kit + highstall mods were put in during one day he had off, not sure of the price / time it took to put in, but he says all up he's spent 10k on the engine and 20k on the body (and yes the body looks nice ).
And the last word i have in the matter about which is better, skylines or holdens, i think i'll just point out that your car has a turbo, does it not? does your brothers tho? Try racing him in an area where you can both reach max speed, and also check to make sure he's got good gear / diff ratios for drags, if that's how your comparing cars.
and Lang, when i get back to perth i'll ask my ex-boss about this HQ, as i'm in syd atm and i don't have anyway to contact him (long story short i don't want to ring interstate for the sake of a small internet discussion, and that's my only option). And the man that owns this HQ is somehow related to my ex-boss, so he got the parts bought + installed cheap. Obviously this doesn't mirror normal expenses + costs to get high end RWHP, but that's the sort of thing i need to ask the guy that owns the HQ as well, is the retail prices.
Lastly @ slowdude, i've seen an article on a 755HP 253 4.2l baby v8 NA. Not turboed... so if you think holden engines can't be about refinement, and good manufactoring or quality etc i think your barking up the wrong tree. I think you'll find that australian and american car companies put alot more money into engine research than the japanese ever will.