Ok i am looking to upgrade my fuel system. I am currently pushing 429whp@15psi(Sunoco Gt plus) and am lookin to reach over 500whp@2x psi..... My actual fuel setup is :

850cc x4 injectors (Placed Stock Secondaries in Primaries)
Supra denso pump (Rewired)
Stock fuel lines and pressure
New fuel filter.

I like the rx7store extreme fuel kit. Does this bring everything i need for 500whp?
Does it include the fuel lines? What is the banjo kit? Does it include it? Can i continue to use 850cc primaries or must i return to 550cc?

Anyone using this kit?