Mine was running around 12in after having it tuned at the Ford shop. I didn't like how it was running, so I tuned it with the idle mixture screws and got it up to 15in. Mine is a 351C 4V, and a Holley 750.
So I have 72 Mustang, and my rear bolts are not flat on the floor plan. You guys are saying to use these "Year one" extenders, I do not install them like the instruction say, but rather on the seat rails?
Hi all, we installed the igniter 2 and Flamethrower 2 in my car. Replacing the carburetor next. Ordered a Holley 4160 750cfm, excited to get it installed. I am hoping it fixes the idle issue.