Actually my goals were just to make very good hp for the size of that engine, driveabilty, and good milage. I like 327s, and it just happened to be sitting in the engine compartment, unhooked and stock, when I bought the car. No problem keeping up, and passing the Jones's . I did everything on my car, except put the engine together, I think with the pro-flo, twist flow heads, and everything else it came close to 5 Gs.