Help with exhaust manifolds for a 66 cuda

I really am not understanding the reluctance to fit the Dakota manifolds. I have heard stories of guys who spent a week fitting a set of headers that were supposed to fit. Which included starter changes, suspension changes, and other major changes to shoehorn in a set of headers. I know that headers give that great exhaust sound and enhance the sound of a bumpy cam, but anyone who really knows will tell you that you dont have to make a "big cam" sound to make big power.Ive talked to a few guys who pm'ed me that they made them fit a p/s car but had to grind a few places and make a few mods. If I have to spend some time to make them fit that;s exactly what I will do because when I'm done I will have a permanent ,long term ,maintenance free exhaust situation that I dont expect to have to do anything to for 10 to 15 years. For me the extra heat generated, burnt wires, constant gasket replacement, plug acess etc. etc. constitute working on the car instead of cruising it. I guess it all really boils down to what you want. For me, a crusier that will run mid 12's yet dependable and smooth enough that my wife can take it down to the grocery store, and that I'm not having to work on every time I want to drive it.