I HAD a 1.4 two pin ballast on it for like the past two and a half years and didn't know it. I just replaced it with a .7 two pin a few days ago. It ran fine with the 1.4. I can't really tell a difference with the .7. Not that I thought there would be. It's closer to the .5 that Mopar says the electronic ignition should have, so I put it on.