[Healeys] running rich

[Frederich Ficke]

I like to test in different ways such as . Take the car for a drive and warm
it up on the highway if you can pull in to your garage after the drive
without to many stop and starts you will see a good reflection of your
richness by how your spark plugs look.
I adjust to where they run just slightly tan on the electrode on the highway
but they will run slightly richer around town just due to stop and starts.
that"s the best way to get even running . if there is a drastic change from
color in around town driving to highway driving then you have other issues
with the SU's like loose throttle shafts  . hope this helps