which model came with idle mixture adjustable screw on BAC and which did not?

have swapped 13BT - US 13bt so said from the owner - and have idle issues( requires open throttle to hold even when hot) and AWS removed.

car runs rich under 2-3k(known from stuttering backfire), and yes BOV vented to atmosphere.

seems like common issue, yet no answer.

 

you have to verify no vacuum leaks first.

 

visual checked, no vaccum leak.

car pulls fine when throttle wide open and boosting.

 

i oughta pull out boost gage from my long dead FD and hook it up.

 

Throttle stop screw,

counter-clockwise for raising(opening)? anyone know?

 

tps adjusted to spec?

 

http://www.teamfc3s.org/info/articles/idle.html