What are the Differences in Big Holley 4150 Carburetors? Part 4
To conclude this series, we’ll remove the bowls and metering blocks from these carbs and look inside.
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What are the Differences in Big Holley 4150 Carburetors? Part 3
This time, we’ll examine throttle shafts, baseplates and a not-so-little thing called a “by-pass valve” found on the XP series carbs.
What are the Differences in Big Holley 4150 Carburetors? Part 2
This time around, we’ll dig into the float bowls, accelerator pumps and more.
What are the Differences in Big Holley 4150 Carburetors? Part 1
What we’ll look at here are the differences in the big Holley 4150 carburetors – all with 1.750-inch diameter throttle bores.
![[Video] First 5-Second Pass in Drag Week History](https://www.racingjunk.com/news/wp-content/uploads/2019/09/bailey_launch_-_drag_week-e1569350266377-376x206.jpg)
[Video] First 5-Second Pass in Drag Week History
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