which is more streetable-comp cam?

We're tryin real hard to tell you. Camshafts with a large amount of duration are not what you need. They bleed off gobs of cylinder pressure. You need a camshaft with no more than 236* @.050" at the VERY MOST....and smaller than that would be better. My God. It's a 440 in a Dart. Kinda hard for that not to be fast no matter how badly the parts are mismatched.