[jeff olsen]

i have a 74 chevy k20 that i just bought. it has a chevy 350 high output engine. i dont know much about it but the truck idles up and down and stalls out every time i stop. it also seems to struggle when i start to accelerate from a stop. i dont know the name of the carb but i do know it is a holly 650cfm and the engine specs only call for a 600cfm. the truck used to run good but really rich due to the bigger carb but now it just started to act funny

i only have guessed a vacum leak but i dont know for sure

please any suggestions would help

 

[[email protected]]

Welcome. Being new to the site, you need to be sure to read the "Read Me' posts at the beginning of each forum. The ones here for example recommend that you just post a general introduction here and post tech questions in the appropriate tech forum. This will give you the best chance for a good answer.