Conversation Between Katech_Jason and nodrok

Correct me if im wrong. From what ive read you guys have been working with the direct injection engines for a few years now in the ALMS series. How much does direct injection change the game of the aftermarket. I have heard everything from DI allowing you to make more power with ethanol, to better fuel economy (which seems to be true). How ever a friend of mine who owns a shop says all manufacturers are having problems with dirty intake valves. Now that the fuel is not spraying on the intake valve cleaning it. obviously its the future, and GM will figure it out since no one else can. Food for thought anyway.