NAPA said they couldn't get a thermostat choke for a 4 Barrel intake manifold for 361/383. The part # is 2205968. Carb is a 1965 Carter AFB 3858S. I'm replacing the stock two barrel on my 383 with a 4 barrel. Am I asking them the wrong question? Is there a P/N? Is there an alternate source? As always, thanks. - Jim Jim Altemose, Long Island, NY '63 Polara 500 (Max Wedge) '63 Polara 500 (383) '65 Belvedere I (Street Wedge) '71 Bronco