Yep, and the entry for the Glen lists 7 of 17 DPs having Pontiac power, which is the LS6 5.5L engine.
Also, they're reducing the maximum bore to something less than stock for the LS6, so if someone wants to make the engine legal they'll have to sleeve it, they can't just cut stroke (which would maintain some of the torque).
edit: oops - just realized this isn't true, as the max bore for the LS6 is more than the stock, 'cause it's a two-valve, not four.
This rule change is definitely aimed directly at the LS6. As one competitor put it to me, "There is no allowance for overall competitiveness of the team/package. We should be racing dyno sheets."
