K11 1.0 engine tuning!

Hey guys , i have a 1.0 16v k10 micra road car .. I have the head skimmed , lightened flywheel , 1.3 cams , 4-2-1 manifold , 1.4 injectors and an adjustable fuel reg .... But i want more power! :p does anyone know any other modification i can do to the engine ? Thanks , mark.
 
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