any 225 performance ideas

As for the dual carb intake, you can use any carbs, but make sure they are perfectly matched. Most of the guys I know running them have Holley 1920s because they are easiest to tune. I set one up with BBSs but I sold it before I ran it. BBS carbs don't have any aftermarket tuning parts available so I wouldn't recommend them unless you are cool with using small letter drills and solder.