That is the best can adjust the TV. Having the lever just off the fwd stop (probably no morethan .25) is the only way I could get full travel rearward at WOT. And that last adjustment to obtain full travel made a big difference in shift points and kd. All factory parts, but not sure if the levers are matched, or if there were different ratios.
And yes, there is a small amount of lash at the rear, but nothing that would account for this condition.
Then you don't have the right TV parts, .25 is a 1/4 " that's actually off a lot and the fact that when you put it to wide open and it raised you idle tells me it's not adjusted properly .
Can you post a picture of the linkage at the carb at idle ?
