Failed emissions

[scirocco25 at gmail.com (Eric Person)]

My car just failed the HC portion of the test, so I need to lean this 
thing out a bit.  In Chicago, we have a limit of 2.0 gpm HC, and my car 
tested at 2.42.  Im not sure how bad that actually is, but seems like im 
going to have to lean it out quite a bit to be safe.  We have to run on 
a dyno, at varied speeds, not just at idle, so just fixing the idle 
mixture isnt going to do much for me.  It looks like the HC is spiking 
on lift throttle between shifts(which is expected) but is hanging out 
just at or over the limit at almost all points.  The CO is just fine 
(half of the limit), and NOx isnt an issue, which is good because I have 
no cat.  The cat shouldnt affect the HC level anyways, right?  It just 
catalyzes NOx and  CO, correct(Its been a few years since my IC engines 
class).

So what are any tricks to get this thing to burn a few more hydrocarbons 
on the way out?  I'll probably replace the plugs, maybe check ign 
timing.  Would replacing the oxygen sensor help a lot?  And I seem to 
remember a certain 3mm allen screw, but im thinking that just changes 
the idle mixture, IIRC.

Any ideas Cali or NYC people?

Eric Person
86.5 16v