Tillotson HL-365b or HL-365a

Are they brand new in the box .
Double stacks are generally alky , there are exceptions im sure .
The drill pattern is the deciding factor , as they can be modified /blueprinted.
 
No clear distinction beteen a or b for which fuel type.
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Are they brand new in the box .
Double stacks are generally alky , there are exceptions im sure .
The drill pattern is the deciding factor , as they can be modified /blueprinted.
The Carb I have is a HL-365b-805 NOS in the box. I bought this off Ebay a long time ago, the person said that it came with a Tecumseh Motorsports engine (ironically as you know I'm working on a H50 Motorsports). It is single stack, so if/what you say is true, I'll save it for my HS50 on my vintage Fox Flyweight kart.
 
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