I should clarify that 800 rpm idle....that is IN gear....the engine actually free idles at around 1200 rpm...but it DOES NOT try to flare up over that, and I don't have to blirp the throttle to get it to idle at 1200 rpm...it goes there the instant i take it out of gear.
Of course I have a real loose convertor too, so there is no way that you can even feel the car drop into gear.
You'll get it somehow....all I'm saying is it could be a long drawn out affair...but when it works...you'll be gratified!!!
Perseverance is the key.