Andy, Could you post the port egt numbers so I can see how well the distribution is in this Wilson modified INDY intake? Do you have port egt's for the Wilson modified M1? If so would you post those as well. While it not likely common knowledge, probably because no one takes the time to do it, if you really work at equalizing distribution it did seem to be worth about 15 HP on every engine we ever tested....I'm talking within 7*F port to port.