How do you test ht leads on a 4 ltr 6 cylinder ford motor?

to test ht lead with out taking it out of coil pack. All you have to do is remove the 1 cylinder ht lead and pull the cylinder 5 ht lead out aswell and measure the resistance with multi meter. so now it will give you the reading. so its 1,5---2,6---3,4 ht leads.