I am currently having trouble with this. I run triple 255s. I don't know if its the pumps or what. I know I found my filter clogged, cleaned it, it ran great for like a day. Then same shit happened dropped Fuel pressure, went lean. Thank god for A/F gauge otherwise would have popped my motor. So i checked the fuel filter its clean, now I'm wondering what's causing the low fuel pressure, still gotta pull the injectors and check them thinking there clogged, or could be one of my pumps are taking a shit.... BTW My car was tuned at RET also, tune is spot on!