You will need to run the engine in order to successfully use the two man method UNLESS you have a REAL man at the pedal. If you have someone who is not willing or able to apply STRONG pedal pressure, you will need the help of the brake booster.

Roll down all the windows so the helper can hear you and you can hear them. Make SURE that the car is in neutral or park and that the e brake is set hard.

I promise you that this will work. The operation of the booster makes all the difference.

I personally will NOT bleed brakes with a hand grip vacuum source. The Motive bleeder works good.