I'll take more care , those times that it hit me was by accident.Now, After servicing the Ignition system it even bites if you place your hand around the wires !
Yes,35mm was the maximum distance that i could get a spark.
This would be Off-Topic but since this is in General Chat I ask it.I appreciate If you have the time to answer it :
There is a condenser (a .25uf Capacitor) with it's lead connected to the transistor and GND.

+12(Ignition key)-> ^^^Coil^^^ -> Transistor -> GND
                 |__Condenser___|

I've read three articles on the reason why there is such a capacitor here .They said placing the cap helps to make better sparks due to the LC characteristics which it makes and it also suppresses generated noises.
By opening some of these Axial Capacitors I find out that this a Electrolytic Capaitor.There is no Voltage rating on the ones I've seen.I could guess they should be atleast 25V(Back EMF?).Standard Condesners for my Chevy have 1cm diameter and about 2.5cm height.A .25uf 25V capacitor is way smaller than this.Where is the hint ?


Yes, These HEI's fire easily even in cold weather.In last summer I've installed a second battery.Coil was fed by the cathode of two diodes.Two different batteries were conntected to the different anodes.Second battery still exists.It serves my Car's computer Switching power supply when carnking.


My father always tells a story about this.He says one day about 25 years ago his vehicle's engine wasn't running alright and an experienced mechanic told him to do what you said.That night my father did it and voila he found a christmas lighting under the hood.He solved the probelm by changing the Spark Wires.


Thanks dear Kai,
Best Regards :
Farshid