I'd like your thoughts on this 360

Ok, I got back to this Duster after 6 weeks. It was running lean, too lean. I did a carb swap today. I pulled the old 600 eddy for a 770 Holley street avenger I had. My "seat" dyno says the car is stronger now, from the word go up to the shift point. I'm confident I'll run better my next trip down (maybe this Saturday??).