[Glagulator]

Welcome.
There are 2 different HB part numbers.
One for the electronically injected engine with a reluctor timing sprocket,
and another for the mechanically injected engine.
The difference is the length of the snout on the HB.
What engine do you have and what part number HB did you get?

 

[Glagulator]

594-037 is the pulley.
What HB part number did you get?
Does your engine have a throttle cable?

 

[Glagulator]

No CPS and a timing indicator bracket, looks like a mechanical engine.