New Info Brings Revised Guess:
Entry level - 260hp 3.6L DOHC V6, w/AFM
Z28 - L76 V8 Automatic Trans, w/AFM
Z28 - LS3 V8 Manual 6-speed Tremec, no AFM
SS model - LSA V8 Auto or manual trans, no AFM 550hp
Turbo 4cyl 2.0L only if gas prices regulary hit $4.00 gallon this summer on the East Coast
