Hey Walter,
Still got the mx5?
I had to put in a new fuel pump as the one from those dyno graphs above died.
Now it has a constant AFR 11.3 but a loss of power down to 185rwkw.
Reason i only got 14.0 at 100mph is because of my shit gear changes.
This car has never missed a beat or had any sport of problems since i bought it from you, she is still in great condition