holley carb question

i have a 1982 camaro and i just bought a holley 670 street avenger for. i was wondering if anybody has had any problems with these carbs or if anybody knows how to adjust them or knows anything about them. my car runs like crap with this carb, could someone please help me. thank u

what size motor??? did you hook everything up properly?? the carb should be tunned pretty good for any stock or mild motor... check all the lines... you might have left a vacuum line or something unhooked