orange or chrome ecu box?

Think I'll go with the stock ecu from napa maybe and then a new ballast resister.....I assume I need a 4 prong? My current one is 2 prong....

I was just going to ask for an ECU and ballast resister for a 74 318.....the napa dudes oughta be able to handle that.....




The two prong is what you will need. 4 prong is an older style.