need help!

[jcueckert13]

ok i was goofing around in my truck earlyer and did a few donuts out in the middle of a dirt feild that my parents own. pulling out of the feild the truck stalled and when i got it to start again it would only run at about 3000 rpm anything slower and it would stall. i figured most likely it was the air filter so i replaced it. now it will start and runn at the higher rpms but at lower rpms it still stalls. my guess is i need to adjust the carb (stock 4bbl quadrajet) for a larger amount of air but have no clue what to do. i have dealt with holleys and am fairly used to them but the quadrajet is just confusing. any ideas of what to do or anything else that could have happened would be appriciated
jeremiah