Measurements are as follows.

Sparkplug leads

#1 - 600mm Straight sparkplug / Straight distributor. 
#2 - 600mm Straight sparkplug / Straight distributor
#3 - 860mm Straight sparkplug / Straight distributor
#4 - 860mm Straight sparkplug / Straight distributor

Coil lead

Coil - 350mm Straight coil / 90° distributor