Early firebirds are rear steer, same as early full size. The long branch fit both cars so I don’t think the headers could be that far off. My headers are 2” with 3 1/2” collectors. Have not measured the length. I don’t want to clutter this thread with other info, just sharing header info. BTW, I committed to a 671 way before this intake was in the works so my intake is for a possible future build.
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" Darksiders Rule "
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