ignition timing ?

You should be but the question is why not? What length are the slots? I'm assuming it's a factory dist. If not correct me please. I just did the same thing to an extra factory dist. I have but due to surgery haven't been able to get it installed yet to test it. According to the chart I have your slots should be .445 long to give you 13 degrees of mechanical advance at the dist. which is 26 crank degrees.