I run my predator on 40 all the time and vary my juice settings. On anything but level 5 all is well. If I run on level 5, under hard acceleration the truck will jerk like it is not getting fuel. If I let off the throttle just a little it goes away. Will putting a lift pump on take care of this problem???

yes that sounds like what people describe as bursting. the truck will buck and jerk and it doesn't feel good. a pump can help, but may not fix it 100%. you need to hookup a tech2 and check out your rail pressure..

are you running the predator/juice stack on a stock tranny? if so you've got more to worry about than a pump.

Yes I am running on a stock tranny. It seems to be one of the better ones. My other half says I don't need a new tranny when mine works just fine. So if I push enough power through it I will need http://www.dieselplace.com/forum/images/smilies/wink.gif a new tranny soon. Can't use my truck without a transmission. http://www.dieselplace.com/forum/images/smilies/hihi.gif An upgraded transmission is in the works. Hopefully a lift pump will help until other mods become available.

Tell your other half it's much less $$$$ to upgrade it before you kill it. :D