Reply to "Edelbrock Thunder AVS 650 Carburetor"

FYI

The Summit carb is actually an "old design" in its own right.

Summit purchased the rights to the "Summit carburetor" from Holley, it was originally a Holley model 4010 carb, but the carb, as manufactured by Holley had issues, and it never was a big seller for them.

The person who designed the 4010 for Holley supposedly assisted Summit in redesigning the carb, fixing the shortcomings of the 4010 design, and the carbs are supposedly still manufactured by Holley for Summit.

Going further back in time, the Holley 4010 carburetor was actually a copy of the Autolite 4100 carburetor, Ford's four barrel carburetor from the late 1950s to the late 1960s.

The Autolite 4100 four barrel carb is basically identicle to the Autolite 2100 two barrel carb, but with 4 venturis and two fuel bowls. The 4100 carburetor was very simple, very reliable and operated for many miles without needing servicing. It was equipped with annular boosters, which made the carb a good performer too. The carb guy I used to take my business to decades ago was a big fan of the 4100 carb, and his enthusiasm for the carb rubbed off on me. The 4100 carb is well liked by a lot of old school Ford devotees. Unfortunately Autolite never manufactured the carb in models having large air flow capacity.

I'm not sure if the Holley version had annular boosters, but the Summit versions I've seen pictures of do have annular boosters.

I think its cool in a "feel good nostalgic kind of way" to read that you guys are happy with the performance of the Summit carb. The Autolite 4100 keeps on truckin'.

-G