i,ve decided to make my mc18 r5k more for track days than road
i am fitting aftermarket pipes , hrc jet kit , open carbs in a hrc style airbox ,
premix

my question is about the solonoids do i keep them or do i junk them
also i have some mc21 carbs ,should i use these instead of my 18 carbs , i noticed in the tuning section the solonoid routing is different on the 21 to the 18, does this make a difference

is there anyone with a similar set up that can offer some info