Did you get a bleeder valve for your master cylinder banjo bolt? There's probably air in there at the top of the lines where they connect to the master cyl. In case you don't have a bleeder on there, you can still bleed it the ghetto way - put a lot of paper towels and shit around it, pump up the pressure in the brake system and while applying pressure on the brake, uncsrew the banjo fitting at the master cylinder till you hear air escaping & see brake fluid squirting out. Then quickly tighten the fitting back before you release the brake lever... repeat.
I had to go through all this when replacing the MC, calipers, & lines on my Z... it's a pain in the ass and gets messy, but, ya gotta do what ya gotta do
