which carb spacer should i use

[lebdog74]

i have a 74 duster 318. which spacer should i use? 1/2",1",or 2" ? open or 4 hole? is it a bolt on and go project or will i need to adjust carb or anything else. new to this and i would like to do as of the work as i can do myself. any help appreciated. thanks

 

[MY340]

Go with 1/2" and you should have no clearance or linkage issues with a stock motor. Any spacer will help hot start problems besides performance benefits.

If your motor is modded or built give us some specs.

 

[rumblefish360]

1/2 - 4 hole