you need to know the current flowing thru the ignition coil. it should not be over 5 amps. make sure that the coil is connected on the battery side (not on the alternator side).

let an electronic technician or expert car electrician assemble a transistorized ignition system. or, buy a surplus 'igniter' )conventional type) - three wire variety. for the 4wire, it needs to be modified.

need an schematic diag for a simple 2 transistor xtorized system? if no diag available, let me be in
contact with your electrician and i will email him one. yong simple lang, ha? personally, i would prefer a cdi to be connected to your conventional system. it offers a higher hv (up to 40kv and lower current consumption. medyo madugo nga lang ang modification and assembly.

dahil ang motto kO ay K.I.S.S , a basic nippon denso 'igniter' is your best bet. hope this helps.