Heavy Breathing (No, not that)

[dzorde]

Seems reasonable, just means that I need to find rocker covers with two
holes in them rather than only one hole.  

Dan     dzorde at geocities.com

>Sounds to me (too) like ring blowby.  The reason the racers duct these
vapors into
>the exhaust (at least the ones who aren't copying everyone else) is that
oil in the
>fuel/air can cause detonation. And we all know what that means...  Also, if
you are
>considering this method, make sure you have some type of baffles in the valve
>covers, and I would plumb one line from each valve cover to the closest
header, (I
>assume you are running them), and a third port, maybe the oil fill cap,
should allow
>filtered air in.  You can create quite a vacuum in the crankcase with this
setup.
>
>Just a note.  I know that a 300ci Ford 6cyl, though it has 8.5:1 compression,
>produces higher psi readings during compression test than 350hp 350ci Chev
V8 with
>11:1.  Think it depends on valve timing and piston stroke.
>