On the fuel front, my 2005 Monaro with an LS2 requires "premium" (that's 97RON here but I know the format is different to yours in the US) due to the compression ratio - making it cleaner but less easily supercharged/turbocharged.
The LS3 is no different (think it's 11:1) so I would fully expect the Camaro to need higher-octane fuel.
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Dan
2005 Vauxhall Monaro VXR. Sport pac - Road Response Pac - Ripshifter
2005 Vauxhall Astra 1.6 Sport (ug)
2001 Honda CBR 600 F
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