I have a 350 with 3991492 heads. I put the shorty style headers on it when I rebuilt it. I bought a new dual exhaust and had to piece the exhaust together from collectors to the headers.
This sucked. So I'm going to replace these headers with full length headers so I can just bolt them up to the exhaust. Any recomendations ? Does anyone run the copper header gaskets ?
Thanks
This vehicle will just be ran on the street.