correct throttle cable length ?
There has always been a lot of talk about the length of the cables.
In 68-72 the 318 and 340 used the same cable as per the parts book.
I have the same cable on both my 67-273.2 and my 67 340.4
On both the stock 273-2 and the stock 340-4 the distance from the clamp to the carburetor is the same, the carb throttle travel is the same.
In 68 they changed the length from the 67 cable (probably because it needed to be an inch longer).
More important than the overall length is the travel or the cable length from the clamp to the carb.
Again all this is with stock intakes and throttle brackets (67-73)
Alan