I need help to find out what the part number I need. I want to convert my 1970 Challenger 340 4 barrels to electronix inginition with a pertronix Ignitor. I check in the distributor cap and its mark IBK1003. I use their search tools on the web site. It give me the part number 1383, but if I look into the catalogue it look like their is no IBK serie (autolite) use in 1970. Also should I order the Ingnitor I, II or III. I wrote them a E-mail never get a answer yet. Good customer service
