Not Ranked
Paul
It depands on how often you will modify the engine. Most people install the engine and leave it alone. 08? The LS3 will be available then and will give you what you want with no mods. Unless you are changing cams etc the only ECU tuning is setting it up for the Cobra. Get a crate motor from the US with all the bits ie loom,ecu,starter,alt etc it will be cheaper and easier than getting bits from Holden.
Look at the LS7 its hard to beat with the dollar so high. mafless tune will give you 550HP on unleaded and pass emissions std cam etc.
Also make sure you get a loom with the T56 connected. dont get the corvette loom.
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