You would be suprised what these GTO's can do. Heavy as hell yes, but stock for stock I would put it on GTO's. On numerous occasions I have and taken out plenty of stock f-bodies. Drag bags, DR's, and a tune and you can see a stock goat go 13 flats and break into 12's and this from a LS1. Mine personally went 13.5's spinning and hopping. I am glad I did not go f-body