greener with v8 issues

[rogue-vogue]

hi guys sorry about this 1st post but im in dier need of some good advice
right here goes (so bear with me)
got a range rover 3.9 efi based offroader
the injection system and most of its wiring have been binned by a previous
owner and has been fitted with 3.5 su's, its also still got the efi dizzy but the engine runs fine when in park (autobox) but when in gear and tryin to give it some beans offroad it's struggling for fuel (if i use the choke it runs bit better but obviously hi tivk over,not good with an autobox)
so my question is where can a pair od su needles jetting for the 3.9?


small vid
http://www.youtube.com/watch?v=uAorMzIrJ-8


thanx 4 ur time

Simon