ok well yesterday i was getting ready to put in my SR 370cc injectors in my other KA and i noticed something that im not too sure about. might be a dumb question but here it goes: do i need the little plastic pieces on the injectors where it spits out the fuel? heres a pic for an example:
http://www.pdm-racing.com/products/i..._injectors.jpg
im not talking about the yellow parts, im talking about the little white caps. and if i do need them, could i just go buy them at advance or something?