Is there a 123ignition for my specific engine available?
Take a look at the wide range of 123ignition products. First please compare the dimensions of the line drawings with your original distributor to be sure you have picked the right mechanical model. The following thing to check are the advance curves. The "Switch" version offers 16 pre-programmed advance curves listed in the curve table. When the advance curves doesn't match with your specific engine, probably the programmable 123TUNE or 123TUNE+ is the right choice for you. With the programmable units it is possible to program your own advance curve. Please be aware you have to find the original curve data yourself, 123ignition doesn't have curve data available.