I have a 75 Duster that I converted from 225 to 318 & had to piece together the TV (kickdown) linkage. Things I have learned, the hard way. There were several carbs used w/ the 727 & 904 trans./ V-8 combo. Both trans use the same basic linkage w/ the same carb. Pay close attention to that: A 318 2 bbl w/ either 727 or 904 will use the same basic linkage. 2 bbl & 4 bbl use a different upper linkage but the part from the pivot (at side of bell hsg) down is the same. Different 4 bbls use different upper linkage. The Carter 4 bbl & Carter Thermo quad are wider than a Holley but Holley offers a conversion MoPar linkage adapter. All the above is good info but check the following: Look for worn parts that can cause binding. Ex. a hole that a rod end fits into can be worn excessively. Rod ends can be worn, the slide bar at the carb can get in a bind, the bell crank (the pivot attached to the bell hsg) can be worn & get in a bind. Attention to detail is important. I have found a way to use the cable linkage from an A-500 or A-518 to use on the 727 torqueflite. Gives a lot more room for exhaust on the drivers side. Will post that sometime in the future for anyone interested.
