Thread: 350 running rich

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Originally Posted by 36 sedan

Your original picture of your motor shows a double pump carb (mechanical secondaries).
To confirm which port is manifold, put your finger over each one at a time while the motor is running, the one that pulls on your finger at idle is manifold.

Sorry, I just used that pic to show the location of the ports. The ones on the carb I'm working on are in the same place, but sticking straight out instead of angled like the pic I referenced. The vacuum advance line was plugged into the right one when I started, is that not the correct place for it on this carb? Could I t off on the brake vacuum to test the vacuum?

Originally Posted by JD323

Sorry, I just used that pic to show the location of the ports.

The picture you posted in post #8 sure looks like the same motor/carb as in your video? The rear (second) accelerator pump on the secondaries makes me think it is a double pump carb.

But, be that as it may, we are not there yet...

Originally Posted by 36 sedan

The picture you posted in post #8 sure looks like the same motor/carb as in your video? The rear (second) accelerator pump on the secondaries makes me think it is a double pump carb.

But, be that as it may, we are not there yet...

Yes, same motor, I was referring to the pic of the bottom of the carb I posted with the circled port. Sorry about the confusion! Yes, the carb is a double pumper.