can anyone tell me how to get the float level adjustment gauge on page 6M-11 of 1963 chevrolet truck shop manual. i rebuilt the carb on my truck recently and just had to eyeball it. i could do the float drop adjustment but not having tool # 3696192 i couldn't do float level adjustment. does anyone have a template or measurements i can fabricate this tool? it runs fine by eyeballing it but having no real auto training and only knowledge from books so i don't know how critical this is. -stacy