The HEI will be all in one package, nothing else needed.
By a new one so you will not have to rebuild it.
Look at your fuse block in the car. There will be a fuse for ignition, near it you will find a 1/4" spade lug that a wire connector can push onto. This terminal should be hot with key in RUN position. Connect a 12-10 guage wire to this and run it out to the distributor and connect it to the +12 terminal. Take old coil wires and tape back or cut off and tape, it was a resistor wire and will not feed the correct current/ voltage to properly operate the HEI. Tom
