Just wondering, in looking at my TB, I noticed that with the throttle closed, I've still got a visually noticable gap, I.E. the blades aren't closing all the way.

Approximately how much gap should there be on a properly adjusted throttle stop??

It's a BBK 58 MM also.

Speaking of, does anyone know is there's a common problem with IAC passaged on the BBK tb's???

 

The only way to tell is by putting it on your car. If it idles high, close the blades up a bit with the screw until the IAC has to do its job to regulate idle.

 

well, I'll play with it tonight.

Can I make the adjustment at idle possibly??