Larry, While I'm not an expert in vacuum dynamics, I would think in this case that vacuum is vacuum. If you're just looking to connect the distributor, any port on the manifold should work. I think that you could even put a "T" in, and connect both the distributor and a vacuum gauge without a problem, since both devices are sealed. The only issue I would see is if you wanted to use the same port for crankcase venting and the distributor connection. The constant flow through the vent hose might affect the advance of the distributor.
I know nothing about the Mallory units. Bill G Newalla, OK '74 Spitfire -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry Vaughan Sent: Saturday, May 24, 2008 3:55 PM To: [email protected] Subject: [Spits] Vacuum port I have a Weber DCOE on my Spit. It has no vacuum port. The Cannon intake manifold has a plugged port on one runner. Can this port be used as a vacuum port for the distributor or a vacuum gauge or is it to be used for emmissions like the valve cover vent. I have the vacuum advance Delco distributor on right now, with the vacuum hose plugged. I do have a Mallory dual point distributor that is all mechanical advance but I have to drill the shaft to get the oil pump dog on, which I am not anxious to do! Larry _______________________________________________ Support Team.Net http://www.team.net/donate.html [email protected] http://autox.team.net/mailman/listinfo/spitfires http://www.team.net/archive
