This car has zero power

Hi I have had the head recond,new turbo, new map and maf sensors have been replaced,new radiator and hoses, new gaskits, belts and timing have all been replaced and reset, fuel pump has been reset by Diesel Aust, at a complete loss as to why this car has not power, it starts straight away and idles, it sounds great, but it has no power, getting it up to 60 is a mamoth task and anything over is just not going to happen, any feed back would be fantastic.

Thanks Heaps
Lia