Would like to know what the rpm rating is on a manifold marked "shelby" with part number SFJK-84240
G Guest · Guest Joined Jan 1, 1970 · 0 Posts Discussion Starter • #1 • Aug 20, 2003 Would like to know what the rpm rating is on a manifold marked "shelby" with part number SFJK-84240
R Roddster · Registered Joined Jul 10, 2002 · 10,170 Posts #2 • Aug 20, 2003 Since it's marked "Shelby" and not "cobra" it was made sold between 68 and 70. If it's a 4bbl, it could be 1500 rpm to 5500 rpm.
Since it's marked "Shelby" and not "cobra" it was made sold between 68 and 70. If it's a 4bbl, it could be 1500 rpm to 5500 rpm.
