help needed for mot gordini carb running rich

[rew]

As title failed emissions for Carb running to rich, what should I check before I start messing around with mixture screw? Would dirty air filter etc be a culprit as not enough air would surely have it running rich? Let me know thanks in advance! Oh BTW it's a Weber of that means anything?

[Sparkie]

take out the air filter, give the car a good rev.....
i'm assuming the test was done at idle - i.e they didnt hold the car at revs. if that is the case, you might be able to adjust the mixture screw to get it leaner at idle. - this wouldnt affect the mixture further up the rev range though.

[rew]

My brother thinks he messed with the choke adjustment so I will try that first then take out air filter and put it on emissions

[Sparkie]

if the choke flaps are shut, or partially shut then that will cause rich running.
take the plastic car top off and see if they are open fully.