Dart sport 1975 headers?

I'm in the same boat; looking to put a nice system on my 75 Duster as well. People can see me at this point, but they don't really hear me. What fun is an old car if it doesn't roar? :D

I've got a 318 with a 727. I checked out TTI's; they look like they might work but they have requirements for starters to use. I've got a Nippon Denso mini starter; anybody know if I can swing a pair of TTI's without having to buy a Mopar Perf mini starter?