[Dave1969]

I have been going through the threads looking for information on round port headers for my 1969 GTO. In my rebuild I installed Butler built Edelbrock Performer RPM round port heads. I am specifically looking for long tube headers with 1 3/4” primaries, 3” collector to 2 1/2” outlet. I would like to go with this combination to move the torque to the lower rpm range. I came to this conclusion after reading many articles on the subject. My problem is finding headers that will fit my GTO and meet what sizes I’m looking for. I’m sure they are out there the websites just won’t put the combination together for my car. Has anyone found headers that might fit my situation? Any assistance would be appreciated.