It's a good idea to install a carburetor spacer for many reasons. One is that it acts like a tunnel ram in a sense. It provides more air volume to help the fuel atomize easier, and also if the material being used in the spacer is non-metalic meaning plastic polymer or wood, it provides protection from the heat coming off the manifold, so your carburetor isn't acting like a heatsink.
Drop me a line if you need anyfurther advice or carburetor work.
TPCRACING76@hotmail.com
[This message has been edited by Hotcrusader76 (edited May 30, 2002).]