5.7 HEMI Vs. 408 Stroker

Maybe i should tell you what i plan to do with my 69 barracuda. My philosophy is that if you put all that work on your car you should be able to drive it! I live in the columbia basin, washington, it doesn't rain very much and the sun is out on average 330 days a year. This car is going to be my daily driver depending on the weather. I want the car to handle well and be comfortable, but be able to play a little harder on the weekends! I have a rebuilt 360 with less than 1000 miles on it. Also a difference in fuel milage would be important. If anyone has done a 408 stroker, late model HEMI, or a six pack SB set up in an A-body your insight and experience would be greatly apreciated. I am brand new to this so if it sounds like it you know why....lol