Can't address your pickup issue.
Re the accumulator etc. I have read reports that mounting the fuel pump on the body will be noisy. You may be able to hear the thump-thump-thump of the fuel pump, resonating with the body. Frame mounting should be quieter. I would think that you could mount the pump on the frame rail below the accumulator. Same general location but more isolation of the pump noise.
Re the accumulator etc. I have read reports that mounting the fuel pump on the body will be noisy. You may be able to hear the thump-thump-thump of the fuel pump, resonating with the body. Frame mounting should be quieter. I would think that you could mount the pump on the frame rail below the accumulator. Same general location but more isolation of the pump noise.
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