Loosen the two nuts and turn one 1/4 of a turn in say clockwise condition. Has the condition improved ? If yes (or same) continue in the same direction. Go another 1/4 turn same or better? yes continue, worse? Add up all the quarters and start in opposite direction. Since you only messed with one Injector line, you should be able to fix it. Also the length of the injector line is crucial, I don't think there is anyway to change the length, but I thought I would throw that in.

Why buy another pump when you can 'play' around with this one for free?

http://www.benzbonz.biz

Marty