Does anyone have any experience with the Holley 4010 / 4011? I know that the 4010 is a square bore and the 4011 is a spread bore. I believe they are a replacement carb for the autolite 4100. Any information or sources of information would be appreciated.

 

They are similiar to the autolites. They have a solid main body like an Edelbrock instead of a componant style body like a regular Holley. They were popular about 10 years ago and I guess they ran ok, but I don't know of too many people that use them anymore.