I'm in need of knowing how much pressure the stock 7A FPR is regulated for. I've got one i'm looking to use in my efi setup but need to know it's rating to accordingly adjust my required fuel settings. most of these bosch FPR's usually have it stamped in the side, but this one does not. I've heard it's 4.0 bar or 4.5? Anyone know for sure? Thanks jeff redig