Re: Stewart's 1955 Packard 400

Posted by Ross On 2020/6/26 7:04:00
Just take that one rocker shaft off and run your pump. I'm pretty sure your flow will be fine or you will be able to find the blockage. The heads are certainly interchangable left and right. Perhaps you have one rocker shaft of the later type which flows far less. Did you clean out the shafts? they can be quite full of sludge.

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