Why?! Still no power....

[chinesedawn]

I will list what I have done

1, rebuild my engine
2, car idle speed not stable and hard to start sometime, no power,I adjusted timing, fixed.
3, Coolant Tem high,I changed radiator and fill coolant, fixed
4, oil change
5, compare to other supra, my car don't have enough power( no pull ) and eat a lot of gas,I checked air filter and spark plugs, air filter dirty and lots of oil cover all the spark plugs ,I change the air filter with adapter and clean all the oil under #3 cyclinder cover, clean all the spark plugs(I use ngk) and put new gasket for the 4 big bolts. fuel mile age become better but still no power..... No DTC,car runs smooth just don't have enough power.