Page 17 of Avenger Systems & Carburetion by Holley Performance Products, Inc.

next you need to decide whether a vacuum secondary or a mechanical secondary carburetor will work best for you carburetor technical information as a rule of thumb vacuum secondary carburetors work best on · · · · relatively heavy vehicles street gearing automatic transmission engines built more for low-end torque conversely mechanical secondary carburetors seem to work best on · · · · relatively light vehicles strip gearing 4.11 or numerically higher manual transmission engines built more for top-end horsepower the type of choke would be the next decision to face most of the holley universal performance carburetors come equipped with either a manual or automatic electric choke manual chokes can be converted over to automatic electric choke operation with the proper holley kit and vice versa most automatic transmission kickdown linkage hookups will bolt directly to the carburetor throttle lever chrysler applications will require the purchase of bracket p/n 20-7 if it s not already included with the carburetor those running the gm th-700r4 automatic overdrive transmission will require the purchase of bracket p/n 20-95 20-121 for this purpose tech line 270-781-9741 23

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