i've started to bleed the brakes on my 3b, the rears went great, the fronts not so much. i have air in the front lines, both side ( looks like carbon aided water ) the master in low in the frame, and the front lines go up, and across the frame. so the master isn't the highest point. i've tryed gravity bleed with no luck. any thoughts ? i even got a vacuum bleeder, and it really didn't do much

it wasn't the magical device i had hoped for
fyi: i did do a dual master, and disc up front