[6pack] emissions plumbing

[Navarrette, Vance]

	Jerry:

	Depends on your camshaft and other engine modifications. If your engine is
bone stock, then you do not need a restrictor there. If you are running a
larger than stock camshaft, the effect is identical to that of a vacuum leak -
rough idle, stalling, etc.
	I am running a 270 degree cam with 9.6:1 compression and B1AR needles in my
ZS carbs. I had to install a restrictor to get the idle to be decent since the
larger camshaft drops the manifold vacuum, and the engine will not tolerate
air in the mixing chambers nearly as well.

	Vance

      Vance Navarrette
    http://www.triumphowners.com/832

-----Original Message-----
From: 6pack-bounces at autox.team.net [mailto:6pack-bounces at autox.team.net] On
Behalf Of Jerry C Shaw
Sent: Friday, July 02, 2010 8:33 AM
To: 6pack at autox.team.net
Subject: [6pack] emissions plumbing

How important is an  in-line restrictor in the hose between the ZS carb
mixing
chamber ports and the top of the carbon canister? The impact of this plumbing
on idle?

Jerry Shaw
'74 Mallard Green
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