Reply to "Stumble!!"

panteradougMember

http://www.summitracing.com/parts/mor-62295

You need to verify that the valve is good.

They can be partially or completely blown out.

Some have dried out diaphrams from too long a shelf life.

Apparently Holley went to a different supplier for the valves. They are using different material for the diaphrams and dry out within a year or so.

Theoretically the check valve protects it from a backfire but it doesn't protect it from defective materials.

I literally had 20 here in my Holley carb drawer.

I bought this tester. I have four left that tested good. Three were completely blown out, 13 had slow leaks through the diaphram and wouldn't hold vacuum.

Make you own assumptions. These things are crap out of the package.

7/2/154:50 AM

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