The engineering for running a Weber carb on a /6 is pretty much the same as any other carburetor. The Jeepers have been doing this sort of thing for quite a while. Maybe a few will pipe up with their carb comparisons on the 4.0L. ( Weber Carburetor Conversion for Jeep Vehicles ) Make sure there is clearance for the throttle blades and linkages. Lokar and Bouchillon Performance make AT kickdown cable kits if required. IIRC the DGES should act like a 380 cfm 2 bbl. The big difference is that the throttle blades on the Weber do not share a common throttle shaft like a BBD or just about any other domestic 2 bbl you could name. I was about to pull the trigger on a 32/36 DGEV myself until a 390 cfm Holley showed up on an AussieSpeed manifold.