Bobcat T740 Less Power

[davisgravel]

T740 track loader, I had bad injectors, would miss under heavy load and eventually throw a fuel starvation code and die, I replaced entire fuel system, pump, injectors, rail, injector lines, filter. Now the machine runs fine, no codes no smoke no miss, BUT, it doesn't have as much power as it had before I changed everything. Before I changed I could run at less than full throttle and not bog engine down, had plenty of power till it threw the code and died. Now with all new fuel system it runs smooth, no codes no smoke, no misses, but it has considerably less power, you can feel engine bogging just climbing a grade, and you can bogg engine down by pushing into dirt pile. Have run it since last fall this way hoping it would learn new injectors and get better but no such luck, any ideas. The replacement fuel system came from Diesel Pro , online.