my sons 1985 camaro iroc z28 has a rough idle and sometimes it will actually quit running.we had the car at our local chevrolet dealer ship and they couldnt detect the problem. it also continues to throw a lean exhaust code on according to the dealer.can anyone help us or direct us to a expert.thank you

 

we put new intake manifold gaskets on the 85 iroc.and he put new bosch injectors also.the car has a lot of bugs.