i have 85 camaro berlinetta 305 i adjusted the rocker arms and now whne try start it runs and dies when take foot off gas and been backfiring and few times seen a flame spark out of carb i didnt do any carb work just adjusted the rocker arms did i mess up on rocker arms could this cause this?

 

yes id check the intake rocker arms thatd do it. if theyre too tight its hard to start and also itll shoot flames thorgh the carb. *** knows ive went through that problem and its very aggrivating.
joe

 

well thats good thing here i was thinking fixed one prob here goes another 1 i caled around today found place can do it monday i have aaa so get it towed there he like between $60-90 aint bad get it done right i keep readinga ll the manuals and i get stumped when trying make sure its in number 1 firing position but its cheap fix so will have professionals do it thanks for your help

 

you tightened the rockers down too far.
It's not just the intakes that will do that. They all have to be adjusted correctly.