Headers
What heads are you running on the engine? With the T/D and any head with a raised exh. port you are going to have some problems. If the front stub has been done you have a better chance of getting some to fit.
But be ready to change a few tubes, it may be your only hope. Super Comps. in my Nova 540 T/D .400 raised exh. port We changed 4 tubes, and the front stub was done. Plated, crossmember cut, and a rack.
You can try Kooks, or Lemons they may have something that might work? But they will cost almost as much as a fabbed set will run you.
Good Luck