I have a 2 barrel merc carb serial number 807312, I am going to attempt my first rebuild of it due to some issues I have been having. Not to mention I have owned the boat for 16 years and it has never been done. Anyways my question is, I am waiting on my rebuild kit to include a brass float. Can anyone on here tell me where to measure from on that type of float? The plastic style apparently has some dots on them to measure too, I don't think this is the case with the brass style. Thanks in advance for any assistance.