Thanks for the info.
I am compiling data: Here are the results so far.
type venturi kit remark
HD4-1 15.1 58cc
HDA 48 15.08 used in zenoah 62
HDA189 B 16.66 D20-HDA MVVS 58cc carb, K21-HDA
LMB215 11.2 chrysler outboard float carb
LMB216 12.7 chrysler outboard float carb
LMB229 19.9 chrysler outboard float carb
WA101 6.5
WA103 12.7
WA106 11.1
WA107 14.3
WA114 10.7
WA120 8
WA121 13.1
WA167 11.1 very good carb!
WA52 23 Largest WA type?
WA55-1 11.1
WT174 12.7 D10-WAT replacement for 35cc and 43cc, cover has pump nipple, K20-WAT
WT201 B 13.4 D20-WAT better fuel flow: wt 465A, wt 76 I think
WT206 7.14
WT209 12.7
WT38-1 9.5 26cc carb MVVS
WT410 11.1
WT465A 13.5 D20-WAT better fuel flow than WT201 (info Pat Roy)
WT481 9.5 D10-WAT mvvs 26cc, K20-WAT
WT521 7.14 Mitsubishi equipment
WT539-1 7.94
WT561 13.5 D20-WAT mvvs 35cc, K20-WAT
WT570 11.1
WT610 13.5
WT629-1 11.1
WT645 0 not recommended for airplane engines