I have a h22 stock with lsd,skunk2 manifold,4-2-1 headers,piping, street tuned on crom and cai......im throwing a 50 shot nitrous in it and wondering whats the best plugs for it..also do i have to changed the gap... I need as much info on this as possible it will b my first time sprayin and would like to have the basics down******ive heard ngk v power 4554 and bkr7e plugs**............