Line lock installation

No, mine holds solid even at 5000 R's and tire smoke for a half block.
I havn't used it much but I was downtown one night and decided to give it hell and see what happens.

:D the fancy foot work comment reminds me of a stick car that won't idle without dying coming up to a red light.
Right side of the right foot is throttle, and the left side of the right foot brakes. :D

Been there a few times over the years.

If it holds that is good. There may be something going on with a different factory distribution blocks.

I hear you on the fancy foot work. I too have had 4spd cars that did not like to idle. Looked like a paddle boat operator! haaaa