They didn't make that many 320 horse 348's and I think maybe the 340 horse 348.Untill the Edelbrock single 4 intake came out,these were considered the best small port intake to use.Sorta rare,very pricey when you can find a really pristene one.
Well that explains it……..I just looked at the water passage in the thermostat and thought my God look at the corrosion in that…….you’d think that thing would have more sprinkler holes than the pink panther…….