I am told that you can make a 360 more powerful than a BB and have the weight savings..360s are still plentiful and you can get just abount anything (power wise) for them..my vote 360 :)
In either case to make the power of a stock 440, everything else (besides another RB or hemi) needs more cam than I'm willing to run on the street.
And, this isn't strictly about power for me. It's about torque and the crowd the car attracts at shows. I've had my GTS convertible very nice and it NEVER had a crowd around it like my son's 67 GT convertible which has NEVER been nice. For that reason alone I would choose a 383 over a 360, but I have a 440 set aside for my Barracuda so that's what it's getting. I do have a spare 340 and I also have a spare 360, but the 340 is the backup for my GTS and the 360 will get a 4" crank and go into my 79 Power Wagon at some point.
