1 7/8 headers on 69 dart?
I had the TTI long tubes with an HDK front end, 408"LA,727. The only issue I had was using a cable shifter. The #5 tube is directly in front of the shift lever. I made a 1:1 bellcrank at the "kickdown" lever pivot on the bellhousing to offset the cable and used a Heim ended link to the lever from the crank arm. GenIII 426 now, same K frame different block mounts.
I had the TTI long tubes with an HDK front end, 408"LA,727. The only issue I had was using a cable shifter. The #5 tube is directly in front of the shift lever. I made a 1:1 bellcrank at the "kickdown" lever pivot on the bellhousing to offset the cable and used a Heim ended link to the lever from the crank arm. GenIII 426 now, same K frame different block mounts.