Idle an timing adjustment.

[geezer101]

You shouldn't need to adjust the throttle stop at all unless somebody has already messed with it (I would check the throttle cable for slack and adjust it though, you'd be surprised how much a cable can stretch over the years). Being FI you will need to put the ECU into diagnostic/tune mode by grounding out the connection in the engine bay and resetting the distributor for base timing. If you adjust the distributor without grounding the connection the ECU will ignore the changes you make and you'll be stuck where you are now. I have recommended 'dynamically tuning' on a number of other posts. It's simply a matter of holding the engine @ 2,000 rpm and gently 'swinging' the distributor back and forth until you find a sweet spot that causes rpm to jump by themselves, then dialling it back a touch to compensate for lack of load on the engine. You should find an improvement in engine response out on the road and depending on how far out of tune it was prior to adjusting, maybe a chunk of hidden HP.

[Beowulf.50Ram]

My friends father replace the timing chain and they timed it incorrectly I believe after that they started adjusting the distributor and the idle just to try to get it to set right. So I've been playing Hell to try to get it right it seems like every time I ground it out and set the distributor it runs fine for a while and then changes I'm not sure if the ground wire is working correctly. So I'm trying to set the idle back to factory spec so that I can readjust the timing re-Stabley distributor and retirement from there