Ok...sticky taped dozens of wooly strips everywhere.
Interesting...
Cold engine coming down hill they all sucked in of course.
Engine hot, they all blew out even up until 60kms sometimes.
Kind of hard to read exactly but even at higher speeds they were blowing out but could of been the wind speed too.
Definitely saw some sucking at above 60kms though and definitely saw blowing out from low speeds up to 60 too.
Also noticed water temps dropped quicker once over the big hill then normal.
Either way, it works!