(2)450 DP's vs (2)750 DP's

@71GSSDemon hey Eric! Not exactly sure what I was looking for in this swap. I got the carbs awhile back. Been kicking around the idea and finally pulled the trigger. Probably most interested in the differences in response. Plus I enjoy playing with different tunes and ideas.
As for mileage, the best I’ve gotten is 12mpg on the highway. That was on a decent road trip with the wife. I guarantee that it’s not that good when I’m by myself! LOL