On a 72 400 my Thermo Quad floods over after the car is turned off. I just replaced the needle and seats and made sure the floats were at the right adjustment. Started it up, ran great, ran it for a while, got it up to temp, turned it off and in about a minute it starts flooding over again. I can see it dripping in the primarys and it drips out the primary throttle shaft on the passenger side. Am I missing something? Anyone else have this problem? Possible solutions? Thanks