Land Rover Repair: 97 Range rover idles fine put no power at higher rpms, t4 test, car idles

Question
Hello, I have a 1997 Range Rover 4.0 the car idles fine and has no problems but when you step on the gas it just kinda pukes out. It's not the MAF I have checked that. Any ideas on what it might be?

Answer
I'd look at fuel pressure.  Maybe the filter is clogged or the pressure is low for some other reason.  You could also have bad ignition wires.  If the vehicle were here we would run it with the T4 test system and look at the screen that shows all the live data, and it highlights out-or-range items.  That usually tells the story.  Test, don't guess.