That will depend on which f2000 rules you compare the cars to. Anything that requires a fuel cell (FT3) will knock most (all? 5 yr life on them) out. If the fuel cell isn't included the list grows pretty quickly. Gord should be legal, Dan F., Jason A., and myself are close (I ran on 8's and 10's, otherwise legal). I don't know enough about the alberta cars to say anything on them.
Gary