440 Duster swap

Not sure of the budget your wanting to stay in and maybe overkill but TTI makes headers for BB a bodies and no cutting of your inner fenders and get tire clearance as Well
Right, I can't afford them. I was able to get some ceramic coated 2 inch hookers brand new for real cheap of craigslist a few years ago + my dart is just a drag car slant 6 car & don't mind cutting it up.