Now I know how long the existing HT leads are, I can make myself some new ones....
The existing black leads appear to be resistive (suppressed) witness the resistor symbol on
the lead (?) ..... are the spark plug caps as well? Anyone know as I want to make up my own set of leads!

R16 AIPS
Type/ Insulation/ Braid/ Sheath/ Characteristics
R16-AIRP/ EP Rubber/ No/ EP Rubber/ Heat-resistance excellent
R16-AIRP-B/ EP Rubber/ Yes/ EP Rubber/ Heat-resistance excellent
*****R16-AIPS/ EP Rubber/ No/ SILICONE/ Heat-resistance, cold-resistance excellent
R16-AIPS-B/ EP Rubber/ Yes/ SILICONE/ Heat-resistance, cold-resistance excellent