Mostly out of junkyard parts. The ignition coils and plug wire >> JY. If your good at fab the trigger wheel/bracket and pickup coil can be had out of a Ford ranger 4.2 V6.

The control box & wiring harness would be aftermarket. Depending on the demand the crank trigger wheel/pickup bracket could be supplied as well.

The control box would come ready to run with a performance advance curve in it.

A jumper would be used to disable the advance curve and fire the engine at say 10* BTDC to allow the initial timing to be set ( just like turning the dist. to set initial timing).

An alternative is to use the Ford EDIS-6 with an aftermaket control box. The up side is the EDIS system is robust and can be had at any autoparts store. Still need the control box to set the timing - but the EDIS will fire and run the engine at a fix 10* BTDC without the control box attached.

Down side is more parts to wire and mount + longer plug wires running around This is a wasted spark system. Depending on the EDIS module they have a unchangeable 7000 rpm rev limiter - fine for the street.

Either system will work with a Carb.


51 GMC 4.2 turbo
Can't solved today's problems using the same technology/thinking that created them