360 heads on a 318 LA

Yeah but then the heads can not be used on a 340 block if the pistons stick out .018 like stock and kb hypers do. Those later year heads are known to crack between the seats, I would go J heads. Your rear axle ratio plays a part. I had 3.91 gears when I had 360 heads on a 318, was great...who needs low end power if you shift at 6,500 rpm