my 92 Camaro is idling right under 500rpm when warm after I set the timing to the factory 10* ive done the correct idle re-learn procedure with no real change.
my tach is pretty accurate I like to think. never compared it to actual rpm through any programs but when my timing was set to 12* it was idling at around 750rpm. if im not mistaken 750 should be where its supposed to be.

can anyone shine some light on this? any input would be much appreciated
thanks in advance

 

I changed the timing back to 12* did the idle re learn procedure but it's still idling below 500rpm when warm. how can I bump up the idle?