Check the F150 TSBs. Ford actually had to put in a fix to reduce intercooler efficiency as it was creating too much precipitate from the air passing through the intercooler and causing all kinds of herky jerky effects within the engine as a result of that precipitate getting sucked into the engine. I don't know if, with the fix in place, the F150 still needs it's intercooler drilled to let precipitate exit the IC, which started as an interim fix while the TSB was in development.