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That is pretty good, especially for a dual plane intake.
Did you tape up the 7 unused ports for the test?
I always just stuff red garage rags in all the other ports out of the plenum flow path. I like to play with open and 4 hole adapters mounted on top but they were all in use today. I know the LD340 has always been a good intake but I was still surprised by the numbers especially with it not being at least gasket matched. In that one picture you can see his old gasket mark. Matt had his victor in his car today so I couldn't try it but I will try to update this with those numbers tomorrow.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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