Do they have headers and dual exhaust for 425 rocket. I would like to put them on my 66.

 

Given the miniscule market, no one makes headers for the 1965-70 full size cars. The rear steer configuration makes header fitment difficult around the steering box. Dual exhaust was a factory option that used a special driver's side exhaust manifold. You can get a repro from the usual Olds specialty vendors. Google starfire exhaust manifold.

 

Thanks joe_padavano for the help.