An '05 V6 is rated at 202hp, and 235ft lbs from what I just looked up. So a bone stock, underrated 5.0 has a little more hp, and a lot more tq, and is 500lbs lighter. PLUS, the V6 is an auto. Assuming you're not the worst driver of all time, and your car is a 5spd, if you don't beat that with even a stock 5.0 fox, you've got something seriously wrong. A 5.0 with a couple bolt ons and a good driver should be a good run for an 05 GT auto, nevermind a 6 cyl. Then again, we've all seen h/c/i or blower foxes with tools behind the wheel running 14s.