I bought a new electric Choke assembly for my 73 Holley one barrel. The seller said part number 3656730 fit the 73 Darts/Holley carbs. When I received it I compared it to the original choke assembly and it is different than the original:

Original assembly stamped HOLLEY 6434 51 (on three separate lines)
New assembly stamped HOLLEY 6932 49

Original assembly has two bolt holes to mount into the well.
New asembly has one bolt hole and where the second hole should be is a bent tab obviously to insert in a hole on the well.

Original assembly choke arm goes up to the carb and makes a 90* RIGHT-HANDED turn.
New assembly choke arm goes up to the carb and makes a LEFT-HANDED 90* turn.

Did I purchase the wrong part number? If so what is correct part number to match HOLLEY 6434 51 casting?