The 370Z is going to feel like a heavy car in comparison, but there is a lot you can do with the suspension to adjust it to your liking. Regardless, I think the 370 is much quicker not only through the straights but also in corners, but you'll just lose a lot of that "light" feeling.
NOVA as in Northern VA? If so, you can come by our weekly Saturday meets to hang out and check out the cars.
Our meetup group:
Mid-Atlantic 370Z Owner's Club (Fairfax, VA) - Meetup
And our forum thread:
NOVA: Zs & Coffee - Starbucks every Saturday @ 10AM
Some of our members have suspension work done and I'm sure they'd be willing to take you for a ride.