Just curios as to what they would do “set up “ wise on a escort s2, I’ve done all the basics, the engine is good and strong, cam dialled in correctly, ign timing set to 12deg btdc, correct fuel pressure, correct plugs and gaps ect.....as far as I am aware all they would do is set Co and check AFR and detonation under load as fuel and ignition cannot be adjusted without ecu work. would it just be just a case of setting the co at idle to achieve this ? Or is there more to it than that ?