Carb Spacer 7000 Series, 2.300" Professional - This 1" thick, billet aluminum, 4 hole spacer has a 7 degree taper through the Professional style stepped holes. It is for 2.300" butterflies with 2.910" center to center spacing.
Here is a bottom view.
And here is a close up of a typical stepped wall.
Please allow 1-3 weeks delivery depending on inventory.