From the Parts Counter — Varajet
Varajet 2SE vs. E2SE: What's the difference and which one do I need?
2SE vs. E2SE Varajet Varajet 2SE Varajet E2SE
The Varajet II was a 2 barrel carburetor optimized for 4 and 6 cylinder engines, and was installed in cars and trucks from 1979 through 1986. The Varajet II featured a progressive linkage, where increasing throttle position opened the 2nd barrel, increasing airflow to the engine. This article explains the differences between the two variants of Varajet II carburetors: The 2SE and the E2SE, how to tell them apart, and how to figure out which one you need.