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For the past few weeks when i go WOT with the car the fuel pressure will rise above the stock FP of 37 PSI. I DO NOT have a regulator and i have stock injectors. I have a mechanical FP gauge also. It will go to 39 at WOT and when i hit 4k RPMS it will hover around 40-42 PSI then when i hit around 5k RPMS it will start to fall back to 37 PSI.

Also for the past couple of weeks my fuel pump occassionally gets very noticeably loud. It is about 1 year old, its a Walbro 255 LPH High Volume pump. Its loud enough to hear over the exhaust and you can hear it in the car. But it does not do it all the time, maybe like 3 times a week. Sometimes its lound and sometimes its quiet like it has been for the past year.
 

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ttt, fuel filter, stock regulator, pinched sock (screen in tank) oh, your pm box is full, bobn
 
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