In Bob Mannels small block book he says the early 64 Comet regular fuel non-Hipo 4V carbs were 1.12” similar to the big block carbs but recalibrated and with smaller jets.robib wrote: ↑Mon Jan 03, 2022 6:36 pmJust to add fuel to the fire: The K code 64s were 4V cars, but the 4100 carb used was not the same as that used on a 289 Mustang 4v 289. The Comets used 1.12 carbs (not Hipo carbs) as opposed to the 1.08s used on the Mustangs. Their HP and Torque ratings were also higher.
He states that in April of 64 when the Mustang appeared the regular fuel 4V carbs were revised with a newer design to match the 2V carbs. Those carbs had the 1.08” venturies and were used in both Mustangs AND Comets.
So early 64 Comet K codes had the 1.12” carbs and later ones the 1.08”. Both 1.12 and 1.08 carbs had C4GF-** (Comet) stamps. The 64 1.08 could also have a C4ZF-C (Mustang) stamp.
Confused?
Joe