restonSS

ok so i may be buying this brand new off of another member. I am new to the specifics of meth. I was thinking of buying the throttle body spacer (i cant remember who sells it though) and spraying before the throttle body. What size jet should i use? and does that jet come with the kit? is there anyone that has this kit? if so please pm me. I also dont know what the switch controlling when it sprays is like. Does it have the psi numbers on it? if not then how would i know when i am spraying? thanks guys.