Question: Micra rally car

Hi

I have a micra rally car its the 1348 coil pack, i have 773 rally cams bigger injectors, group a airbox, lightened fly wheel, ecu remap, 4-2-1 exhaust system, I want to add more power but im on a budget i was told to look into a better fuel pump and regulator? do you think this is a good idea? and if so which one will be best? Im looking into a lsd when i have the cash and know this will help out getting the power to the ground. Is there anything else that will improve power?

Any help will be much appreciated

Thanks

Olly
 
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