00 gm 5.3 cam heads wont idle in gear.
I need some help. I built my 00 gmc 5.3. It has trick flow gen-x 205 heads and matching cam also bored .30 over. The cam has a 112 degree lobe separation with .525 lift and .225/.225 duration. It idles fine in park or neutral. But as soon as it is put in gear it either stalls or runs real rough. It was tuned by a professional (or so they say) shop. It idled bad as soon as they tuned it. They told me to drill the butterfly out. Which was a mistake. It didn't help. They won't fix it so I could use some help in figuring out my tune. It also doesn't run like it should I think. Any info will help greatly. Ive tried changing my desired airflow and still no luck. I've also changed minimum injector pulse widths and small pulse adjust and still nothing. I really appreciate any help.
