383 or 440 Dilema

There both very capable engines, both have no problem making 450-550hp the 440 obviously will be a little more streetable and make more torque for any given hp. Less torque might be a good thing when trying to get her to hook up. And even though a 383 is smaller, by time it's rebuilt it be just under 400 cid
Pretty much stroker small block size but more capable.