Ok, guys, this thread has been very usefull to me, but i've watched a lot of videos of people using this engine withou the pump and on one of the videos the backplate doesn't even have a fitting on it, i'll try without the pump as im getting air bubbles in my fuel lines and i've double checked everything and i can only guess the pump is making them. here is some videos let me know what you guys think.

http://www.youtube.com/watch?v=lnPbxfvq8v4

http://www.youtube.com/watch?feature...&v=vzU-VI5RcSE