discovery 300tdi no pull in 5th gear

hi im haveing problems with my disco not pulling in 5th gear its a little bit tierd but it was fine unitl the larst turbo so i put a t 20 upgrade on then had same problem turned pump up lots of smoke little bit better not right comp is little low but not bad 1 20bar 2 23bar 3 30bar 4 25bar within tolances going to check tapets and going to try and remove air box and pipe to c if its just the turbo not geting enoth air in to the turbo any thorts that dont invole head of as money is tight due to i blew up my tranfer box

what pressures did you get 120 bar or 1.2 bar or 12 bar ,they should all be equal or 10% of each other i would expect them all to be around 20-25 bar or 300-350 psi,upping the fuel on a tired engine not a good idea ,but check obvious first like hose on suction side not collapsing and those on pressure side not leaking

check house all ok replased air in take pipe all ok comps ok arounding to landrover dealer going to try another feul pump as he seems to thing that mite be the problem as when we played with the feul pump no diff was made bar from it used more feul and smoked more