Stock 340 Manifolds or TTI Shorties?

I've heard good things about Doug's Headers. Anyone have experience with those on a Duster? Ground clearance? I have manual steering & aftermarket floor shifter.
Edit: Decided to bite the bullet and get the Doug's full length headers. Only want to do this once, so instead of the TTI shorties, will go full length & sell the shorties!
Yeah ! ! !

You get wayyy more than 10 h/p too ! ! !

The way people throw 10 h/p out there, doesn't matter 6 cyl or 512 stroker, it's always "only 10 h/p" ! ! ! BS !