There are three different length cables for A-BODIES. /6, 318 2bbl and the shortest is 340,360 4bbl. The cable has nothing to to with the fulcrum of the peddle.
What the problem is with the carb travel compared to the peddle is the carb. There are different brackets for the carb linkage that bolt to the carb that changes the geometry. They are different but available for Holley ,Carter, and Edelbrock. They correct the linkage geometry.
318 cable works the best with a high rise 4bbl intake. It is shorter than a /6 but longer than a 340,360.
Remember the bracket that holds the cable to the intake is different. I just changed to a 4 bbl intake on a 318. I had to replace three pieces. Carb rod to swivel made it. lever on trans from a 68 on back 904. and the cable bracket on intake I made from two 2 bbl brackets. It works perfect and have done many like this
The motor and trans are still on the K member stand in the shop if you want pics.
I also have all length cables, Used but in good condition. dodge trucks fall between /6 and 318. $10.00 plus ride.You decide what length. flat rate should be around $6.00
The second two pics are a 318 cable on a high intake. The first is another 318 with a 4 bbl intake. Made all parts using factory pieces. Note the bracket bolted to carb for correct Geometry. Aftermarket throttle systems suck. They usually break when your far from home. I've seen better cables on Chinese mini bikes.
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