people say 3/4 are the lean ones
i was blowing air through my manifold today after tapping it for my link's air temp sensor and found that if i blew air straight into it, 99% went to #4, if i angled it a little bit it was like 60 to #4 and 40 to #3
i also noticed that #4 on my 99 manifold atleast is smack dab against the rear of the manifold
now if this has been discussed before ill feel halfway dumb but not entirely
im thinking the stupid manifold is to blame for those rear cylinders getting more air
has anyone made a custom manifold and had it flow tested?