Passing along some Darin Morgan info

If were taking about Shiv LS's then your right! As i said in my first post. If your trying to get low speed/part throttle/fuel economy I/M.......THEN, YES THAT IS WHY THE MANUFACTURE DOES IT.
If you take it to a full race head......... I will NOT do any of them things well..........There is more power to be made by not Doing a swirl dance in the intake trak......