Just installed a new racetronix fuel pump and upgraded in tank harness. Went to set the fp at idle and compared to the old walbro pump I had 60psi with the line off. Started backing out the adjustment screw and got it down to 48ish but I was weary of backing out the screw any farther as it was unthreaded quite some ways and the fp wasn't dropping any more which makes me think I hit the limit of the acufab fpr adjustment. Anyone experience this? Do I need to bite the bullet on a different fpr In hopes it's just the acufab...