Guys please bear with me I am a new user and newish owner based in Darwin NT. I have a 65 Fastback with 289 top loader 4 speed 9 " diff. I have been waiting nearly four months to get new headers, I was told they where probably original Shelbies, so we ordering new from US. We have tried to install but they hit on the starter motor and crank case. Seller has said that Shelby made a wide set as well, but can not purchase any more. Any suggestions to keep the note and performance, ideally quality genuine part in Aust, or at least next best options current mild cam and high compression.