The biggest problem you'll have with the LS-2 GTO is the rear wheel hop due to the IRS. I think there are some traction mods to address it. The SRT-4 is a pocketrocket. It is not made very well and will start to fall apart if you run it hard alot. The only issue that I have heard about the GTO is that it is a [censored] to get into gear when it is cold. Wait, what car forum have I heard about that issue before?