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When it surges it normally only jumps 1-200 rpms & 300 tops I'm guessing. When I did that check I told you about earlier with tapping the brakes, then it will jump the 600 or so rpms. Yes, I can feel the car go vroom vroom vroom and more so on steep hills. With high load low rpm scenarios. Did the vacuum test. Idle the needle shakes like crazy between 18 and 19. Needle looks like a blur almost. When I hit the rough spot (about 2200) the gauge reads just a lil higher, but continues shaking as described. I set up screen mirroring with my phone and laptop so I could see the tach while under the hood and brought it to 3k. At 3k needle is rock solid at 20. The exhaust does make a faint poof sound every couple seconds and it affects my rpms about 100 rpms. Watched this on the tech ll. It isn't showing any misfires while this happens.
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