[Skools Out]

ok here's the orifice info

ORIFICE

Part# 0328560
ORIFICE, #47, 150 HP Early Production with 433342 or 433343 Stamped on Carburetor. These Assemblies and Related Parts Must Be Used Together.

Part# 0334568
ORIFICE, #39, 150 HP Late Production with 435528 or 435529 Stamped On Carburetor. These Assemblies and Related Parts Must Be Used Together.

Part# 0317473
ORIFICE, #30, 175 HP

IDLE AIR ORIFICE

Part# 0323703
ORIFICE, Idle air bleed, #36, 150 HP Early Production with 433342 or 433343 Stamped on Carburetor. These Assemblies and Related Parts Must Be Used Together.

Part# 0325827
ORIFICE, Idle air bleed, #44, 150 HP Late Production with 435528 or 435529 Stamped On Carburetor. These Assemblies and Related Parts Must Be Used Together.

Part# 0327745
ORIFICE, Idle air bleed, #40, 175 HP


HIGH SPEED ORIFICE
Part# 0322907
ORIFICE, High speed, #57D, 150 HP

Part# 0328546
ORIFICE, High speed, #72D, 175 HP


If you notice the bottom set are 175 HP the 175 that yr was the exact same motor as your just different carb body's and orifices if you find a used set of 175 HP carbs on ebay you can change them and make yours a 175 HP. Before i were to rebuild the stock set i'd find a 175 set and put them on.