The exact opposite, I'm pretty sure we can use any LS1, even the earlier models...unlike those poor souls down south.
Bang for buck, the LS1 is a great option when combined with that T56 six speed and also a nice fit.
But hey, there are also pros to stick with traditonal Ford powerplant.
Really depends what you are after. Offer is still open to help show you around the manufacturers on that November weekend.
As you say, roll on November...