Is the kickdown linkage set up right?
OK, Edelbrock carburetors use a special Mopar throttle bracket so that things line up properly with the throttle cable and kickdown linkage as pictured below:
Now, you need the Holley carburetor throttle linkage adapter for your Holley setup on your mopar. This will give you a better swing on your throttle cable/kickdown linkage so the geometry is right.
When you step on the throttle it will give you full power, unlike the setup you have now where it will not swing the throttle open all the way because the geometry is wrong.
Then you can also get the throttle cable and kickdown linkage on the same axis for the swing of the carb lever, both working together.
You need the full power going to the transmission if you want the transmission to kick down when you step on the gas.
OK, Edelbrock carburetors use a special Mopar throttle bracket so that things line up properly with the throttle cable and kickdown linkage as pictured below:
Now, you need the Holley carburetor throttle linkage adapter for your Holley setup on your mopar. This will give you a better swing on your throttle cable/kickdown linkage so the geometry is right.
When you step on the throttle it will give you full power, unlike the setup you have now where it will not swing the throttle open all the way because the geometry is wrong.
Then you can also get the throttle cable and kickdown linkage on the same axis for the swing of the carb lever, both working together.
You need the full power going to the transmission if you want the transmission to kick down when you step on the gas.