Odd that you would say fuel pressure regulator. I had a GM Master tech email me to say that he had seen this issue and it was a leaking regulator under the intake plenum. It did start shortly after I replaced the fuel pump. Just can't see how a leaking pressure regulator would cause a 5 and 7 misfire consistently though. I'm going to pull the valve covers and look for unusual spring action and pull a compression test before I pull the intake. Thanks for your input.
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Today's Featured Article - Harvestin Hay: The Early Years (Part 2) - by Pat Browning. The summer of 1950 was the start of a new era in farming for our family. I was thirteen, and Kathy (my oldest sister) was seven. At this age, I believed tractor farming was the only way, hot stuff -- and given a chance I probably would have used the tractor, Dad's first, a 1936 Model "A" John Deere, to go bring in the cows! And I think Dad was ready for some automation too. And so it was that we acquired a good, used J. I. Case, wire tie hay baler. In addition to a person to drive th
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