Single stage. 10.5 Hg. Replacement. Most rebuild kits come with a 7.5 power valve where originals came with 8.5 or 10.5.
Ford TBird Years:
1957 (57)
Above years shown are used for searches and are not application listings.
NPD Part Number : 9A565-1F05 Manufacturer Reference #'s: 70-185,
1957-1957 TBIRD 312-4V, D MODEL, REQUIRES ONE 8.5” AND ONE 10.5”
WARNING: This product can expose you to chemicals including lead and DEHP, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.