It is a very good intake. I like the look of it better if your not using a transbrake for throttle response. One thing they need is work just under the carb by a proffessional porter because the 2inch cast spacer doesnt transfer very well to the intake. There are some siginificant gains there because it turns back in toward the center before the opening of the port. Mine had to be welded and cut a little more just under the cast -on spacer. Mine is on a 565.