View Full Version : Extra opening on the intake manifold 351ford w

04-21-2009, 10:30 PM
what is this new opening we're seeing on our engine....we got a rebuilt engine (1972 351 ford windsor) and on the port side of the 4 barrel carb, there is a mystery opening that goes through to the exhaust...do we just plug it or does is do something?

04-21-2009, 10:44 PM
It is for the old style choke (on a car or truck) to get some warm air to help it open a little faster. You can get a block off plate to cover it. I imagine summit should have it.

04-23-2009, 02:35 PM