Steve, My Continental Manual dated 7/63 gives different part numbers for the Marvel - Schebler Carbs.... Both with the same Model # MA- 3SPA
Part number for C-90 is shown as 10-4252
for 0-200 is shown as 10-4115
The venturi diameter is not shown for the C-90; the venturi diameter for
the
0-200 is shown as 1-1/2 inches.
The Stromberg Carb NA-S3A1 is shown ---Carb Parts list number 380162
for
C-75, venturi size 1-5/16 inches , main metering jet 46, Main air bleed
60.
Carb Parts list number 380167 for C-85, venturi size1-3/8 inches, main
metering jet 45, main air bleed 60.
(Evidently this carb was also used on some C-90 engines, as the parts List
number is shown as 380231. No jet sizes or venturi sizes are listed.)
The manual refers one to the Parts list numbers or more information.
Harry Francis
93530
Blacksburg, VA
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