It can go to any one of them.

I said "only" because; some have wanted to connect all 3 to the distributor etc.

Often the linkage is (temp) changed, to only use the center one to save on gas too. If you use an end one, you lose that option is all. \:\)

John M., I.I. #3370

"There are no shortcuts to any place worth going". -Anon