Originally Posted by
Durdan
pretty sure theyre not. theyre only known as that name by people that have no idea WTF secondary butterflies really are.
secondary would denote the addition of a PRIMARY set of runners. KAs do not have these. single runner manifold.
theyre refered as secondary from what i understand because they come second after the TB butterfly.
when you say a single runner manifold, do you mean that there is one runner per cylinder or on the whole manifold?