Holley carb # 1946

The bore diameter (and consequently the carb mounting bolt spread) is greater on the later flat top log heads. The 1946 has the greater bore spread. I made an adapter to mount my Holley 1908 and later Autolite 1100 on the later head. Basically you would need an adapter that is turned upside down from what I made.

Below is a pic of my adapter plate (3/4 inch aluminum plate):
http://i290.photobucket.com/albums/ll27 ... rplate.jpg

Stock carb adapter ontop of my adapter plate:
http://i290.photobucket.com/albums/ll27 ... dapter.jpg
 
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