Yes, you do have to modify the distributor slightly to install an MSD ignition.
You can do an online search for the directions. But for now i'll explain. there is an internal resistor that will fry if you don't disconnect it and hook directly to the coil+ in the distributor. You take off the dist cap and the plate underneath and then you have to grind a small copper connection and solder a wire to one side of it. Its really not difficult to do and should be reversible if you ever have to take the ignition out.
I am using the MSD sport compact ignition(got it for free). And you have to use MSD pn 8810. It is a tach signal adapter that allows your fuel injection to work with the aftermarket ignition. Bottom end throttle response is a little better and helped the idle after my cam install.
You can do an online search for the directions. But for now i'll explain. there is an internal resistor that will fry if you don't disconnect it and hook directly to the coil+ in the distributor. You take off the dist cap and the plate underneath and then you have to grind a small copper connection and solder a wire to one side of it. Its really not difficult to do and should be reversible if you ever have to take the ignition out.
I am using the MSD sport compact ignition(got it for free). And you have to use MSD pn 8810. It is a tach signal adapter that allows your fuel injection to work with the aftermarket ignition. Bottom end throttle response is a little better and helped the idle after my cam install.