Fuel delivery

walbro340.gif
Once we started playing with e85 and the higher volume needed it was apparent that the stock fuel pump even at 20K miles was not up to the task. I installed a Walbro 340 pump one of the high pressure variants It makes a little more sound. That is you can hear it in the car at idle with the radio off, but hey this is a 400hp monster right.
Check this for the before and after fuel pressures. Fuel pressure is labeled OilP.
Data Plot

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