hello I have a lq4 block with ls3 top end. I don't know if im missing anything?? I have the gaskets ls1 water pump and spacers bracket to move power steering and alt. ls2 timing chain with a cam on the way. I have a throttle body with a mass air flow sensor just need to make my intake. im being told the ls7 injectors will fit the stock wiring harness cause there both ev6. is there anything else I need to finish the build? no parts are on the car yet. thanks in advance