Originally Posted by Cgolf

Just want to double check on the Trans am class, the motor should be a 25.5 not the 21.5 or 25.5 listed on the web site, or is it being treated different than the vintage rules?

Originally Posted by v_squared

Don't use the rules on the website. Follow the rules on USVTA's site.

http://www.usvintagetransam.com/rules/