what I see. Options

[RacerX11]

If you are worried about your fuel pump providing enough fuel, you need to monitor fuel pressure. If the 190 pump can keep pressure all the way to redline, it is adequate. If pressure drops off, the pump can't keep up. The 255 pump isn't going to allow more fuel to be injected if it is still being regulated to the same pressure. The excess fuel flow will be bypassed to the tank as long as pressure is adequate.

Fuel pressure gauges aren't very expensive. I picked up one for ~35 that attaches to the schraider valve on the fuel rail, and has enough fuel line to run it out under the hood, and placed under the windshiel wiper so you can read it while driving.

If the pressure is dropping off, put in a bigger pump. If the injector duty cycle is maxxed out, put in bigger injectors.

Also keep in mind that as you increase the regulated fuel pressure, the fuel pump won't be able to flow as much. I used to have a good link for different Walbro fuel pumps that showed fuel flow based on voltage and pressure. I will try to track it down.

Marty