tj white wrote:
You meen like the stock setup on my 80 4X4 ?
So I've always suspected something like that was stock but never seen a picture of it. My '72 air cleaner angles backward even more, points the other way, and the opening is like 1.5" diameter and round. I've toyed with the idea of re-indexing the stock unit to point it more forward, and in the other direction, haven't done it. Maybe I could find some parts like TJs at the Pick-a-Part and adapt them--that would probably be the most cost effective solution. I think the key will be that 45 degree bit that attaches to the air cleaner.
So on Chevy small blocks the hot trick is to put the air cleaner lid on upside down, everybody's done it, including me on my other truck and it felt like even that helped. So theoretically it can't be a bad thing to have colder/more air going in; the question is how. I think I want to definitely delete the stock air cleaner, it's big and in the way of the idle mixture and idle speed screws, has a lot of mass to hold heat, etc. Would just be simpler to get rid of it, put in some kind of open element. I think that I will try that first, the plenums and such I would need for a true cold air are too expensive and don't fit the odd, probably metric Hitachi carb throat. I measure it at 3 3/16", it's probably like 81 mm OD.
Thanks for the tips!