black smoke

[turbo buicks]

today i gave it gas but not WOT b/c its hot and my cars acts funny in the hot weather. im not sure if it downshifted or not and i seriously doubt it saw over 10 lbs. but i looked in my rearview mirror and saw a HUGE cloud of dark smoke come from behind my car at which time i IMMEDIATELY let off and now it seems to idle rough but not really much different b/c it has always idled a bit rough. any ideas what this smoke was? i thougt maybe my bad injectors made one cylinder super rich and it made a ton of smoke. sorry i couldnt hear if it backfired or not b/c of some loud car right next to me

 

[rob nolan]

Running rich, what is your fuel pressure set at.

 

[rob nolan]

What chip are you running.

 

[turbo buicks]

stock regulator tested at about 38-39 psi. funny thing is i got a adjustable FPR sitting in front of me but i gotta wait till my friend comes home till i can put it on i also have a stock chip