Thanks, guys.
Barry - that link does not work for me and hasn't for a while. I had bookmarked it several months ago with the intent of getting the gauge when I got the motor put together, but it looks like I waited too long.
Earl - I like the Berg approach of fixing the needle and seat in place to measure the float height. One of the tools I made is to function as 98014.200 in this diagram:
It seems that this will only work if the needle and seat are at a fairly precise depth. The Berg approach seems like it is adjusting the float level directly off of the needle and seat as opposed to using an indirect intermediate measurement. As a result, differences in needle and seat height would not matter.I think I'll order a set of those tools.
Thanks again.
Tim