Weak link: 80lb injectors or stock pump w/ bap?

[tvanlant]

My car starts to run out of fuel at 7200 RPM. Is it the pump or the injectors that's holding me back?

E85, 9 psi (@7000 rpm)
80 lb injectors, stock pump with KB BAP

 

[jymboslice]

Fuel pump

 

[Stevem17500]

Rev it 6900 and be safe

 

[burke985]

Fuel shuts down at about 7150 ish on mine with the race tune @9 psi and that's with 47lb injectors.