Yes. I did bench bleed. The booster is the recommended one from cityracer. The brake pedal is stock.If there is no air in the system, the only thing left is not enough throw against the master cylinder plunger. This points to the brake pedal throw or the pushrod length.
My experience is it probably is both since without sufficient movent of the master cylinder plunger, the air can't be completely removed.
Do you bench bleed the master before install?