Hate to say it but the 5.0 is faster if both cars are bone stock, no question about it. Sure you might be able to "outdrive" them, but with the same driver in both cars the 5.0 will turn better numbers, stick or auto. I've seen a 100% stock 5.0 6 speed turn high 11's with nothing but a set of slicks on it. I don't know of a stock Camaro SS running in the 11's ever, regardless of tire. With that said, I'd still prefer the Camaro