Hooker makes a set of 1 3/4 tubes that fit nice, plenty of sparkplug wire clearence on number 5 & #7. They will only fit with manual steering though.
I know the TTI's are expensive, but they are the only hedder that are designed for Mopars by Mopar people! To me, if i don't have to put up with burnt up plugwires, leaking gaskets, & bent drivers lower tubes, then they might be worth it. My next set will be TTI's. Has anybody tried a set of the Dougs headers that go above the steering center link?