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Flathead distributor vacuum

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Old 02-09-2007, 11:55 AM
paddleback paddleback is offline
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Flathead distributor vacuum

Hi! I am in the process of rebuilding a '50 flattie and am planning to put on an Offy 2X2 intake with Stromberg 97's (new). Will I be able to use the stock dizzie and pull adequate vacuum off of one of the new 97's? If not, what other good options are there?
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Old 02-09-2007, 08:51 PM
soule46 soule46 is offline
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In general I have heard thet the answer is no, there is not enough vacuum to run the stock dizzie (you have 1/2 total CFM at each carb).

Here is a good techno article on this subject:

You can find it at the "Techno Source for the 1932 thru 1953 Flathead Ford" site:

There is a discussion about some ideas for fixing the problem (especially that you sould not use manifold vacuum for this purpose). I don't have practical experience with this, but others here will likely be able to help you out with some ideas.

Good luck.
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Old 04-13-2007, 04:48 PM
F6Guy F6Guy is offline
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The stromberg carbs do not have the necessaty vacuum ports to run the factory load-o-matic distributer. Your best bet is a mallery unilite.
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