No i didn't say any. To clarify, i mean most stock capacity, mildly modded LS1s
1600kg is being a bit kind to the Monaro, isn't it? Add to that the fact that a lot of them are auto, so from a rolling start, where the skyline will be on boost straight away, the monaro is going to want to have a fair bit more hp to keep up.
this isn't a pissing contest, however. i agree, best bet for the OP is to give one a go.