OK ive got a 200 tdi ute been down on power since ive had it , its been rebuilt bout 80,000 ago ive upped the boost to 12 psi an wound up the fuel, advanced the injector timing but its still heaps slower than my old mans 300tdi, witch i sold to him few months back , i remember when i did the timing belt that thier was fine adjustment on the cam gear just like thier is on the injector gear how much effect would a slightly out of time cam have would it be worth playen thoughts please ?