I just replaced the head gaskets on my panhead. And I reinstalled the mallory a556 distributor per the instructions. I got it started with about 75 kicks and a squirt of berrymans carb cleaner. It ran for about four minutes . I looked down at the super e and a little gas is squirting and misting out. I put the breather on and it ran for about two more minutes, then died. 80 kicks later it wont start. It ran before. The only thing I changed is milled .008 off the heads to clean them up and installed new head gaskets and spark plugs. What do I need to do next?