Mk2 escort Rear King springs eyebrow height

About to order king spring rears pt number FOR024 for my mk2 Rs. I am currently running 4 leaf van springs and have 325-330 mm eyebrow height, which i think is slightly raised compared to standard 3 leaf springs. What is eyebrow height when running king springs?? If someone could measure theirs it would be much appreciated. Oh and its a coupe if that makes any difference. Cheers