[SSLance]

Lots of trade offs though, who knows which is best without testing all of them?

No spacer drops housing down from hood opening up path on top of housing, but looses the straightening effect below the housing into the air horn, plus pulls in hot air from engine bay vs outside fresh air.

Housing up tight to the hood does create a 90* turn down into housing from hood, but GM used setups like this for years on their hottest hot rods...wouldn't they have tested this?

Open element housing on my spacer or a K&N open top filter on with my current housing might be an interesting option as well.

It is kind of like I discussed with the builder about headers though. I'm not out to get every last little 20-30 hp here or there with this setup. It all has to work together, look good, and perform safely. I will certainly pay special attention to the A\F ratios under WOT pulls once it's back on the road though as I can see now how drastically air flow can affect mixtures.