RS 500 Plenum over a std one for 4 injectors ?
I can only use 4 injectors to comply with regs in my race class. Ive got a 500 plenum and throttle body etc.. but is their any advantage in using it over a std 2 wd one ?
I know the 500 kit is bigger but does it really make any difference when im only using 4 greys ?