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Mazda Engine General \  Vaccum diagram for weber carb conversion

Vaccum diagram for weber carb conversion

Mazda Engine General Mazda Engine Mazda Tech
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jwcorder   +1y
Anyone have a pic or a diagram, preferably a pic, of how you have your vac lines ran with the weber carb conversion? I thought I had mine right but then I saw half of a pic on here the other day that didn't match what I have but I couldn't see where a few of the lines were running.
kaoss   +1y
The only vacuum line that you need is the one to the vacuum advance on the distributor.

Cap the rest of them off. The little rubber caps will eventually fall off, so when your truck starts running like crap one day, check those first.

If you want to "shave" those holes, remember that the intake manifold is aluminum. So if you don't have a way to weld aluminum, trim them off and then jb welb the holes, and take some shake and squirt to the manifold.
jwcorder   +1y
what about the pvc value? And there is a line that comes off the side of the carb under the air filter that goes somewhere? None of those needed?
pont   +1y
you will still need it as well.
kaoss   +1y
the one the carb gets plugged, Mine came with a little set screw.
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