I have a RA XP pump that is about six years old. I have my base fuel pressure set at 48 PSI line off with 009s. With the car at WOT in 3rd with the boost at 16 psi I notice the fuel pressure drops to about 60PSI. I've heard that base fuel pressure + boost psi is what the fuel pressure should stay at WOT in 3rd. So if I do the math that should be 64 psi of SUSTAINED fuel pressure. Is this theory true or will fuel pressure always drop a bit at WOT in 3rd? If this is true then I'm assuming my pump can no longer keep up with the demands of my motor and needs to be upgraded, correct?