So I noticed while driving that when I'm driving around 60-75 mph my rpm needle fluctuates pretty bad. It doesn't drop or raise a lot, but it's like someone flicked it and it doesnt ever settle down. My fuel pressure is between 18-20 psi. I thought after I put my airdog on that would take care of the tach issue, but it still moves a lot! Anybody have this problem? Any thoughts on what's causing that
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