I put my pressure regulator right before the carb. The idea is to keep the higher pressure fuel as long as possible, only dropping the pressure when it is absolutely necessary. Definitely check your idle adjustments, including your speed. Also, Chryco's suggestion to check the pistons out while idling in gear, is a good one. All carburetors need adjustment in order to run on a Chrysler, so there is no such thing as true "bolt on" performance. Although Edelbrock carbs are more forgiving than Holleys when they aren't tuned, they will still work better when they are properly dialed in. The springs that control the metering rod position are an often-overlooked part of the carburetor's idle, main, and power circuits.
