Here's an interesting article:
http://www.dragzine.com/tech-stories/engine/debunking-aluminum-rod-myths-with-grp/
Aluminum rods seem to have come a long way.
That said, why? If that's all you're going to use it for, you are signing on for a lot of extra expense, some hassle, and at least a little worry for no actual benefit. Your money, your choice of course.
Maybe the shows around there require aluminum rods? Does it run nitromethane? LOL