i have a 92 camaro rs with the 305 tbi, my question is the car surges at idle, and the idle seems to be low. it idles at 600 or so, surges from 600 to 650. i thought it might be the o2 sencor but that didnt help, the question is will the spark plug wires cause this? thats the only thing that i havent changed on the ignision system. They seemed good, just wondering. I also got a oftermaret chip installed wich it seemed to start it after that. im thinking that the chip is finding the things that were not bad yet and amplifing them. any help would be appriciated. sean

 

throttle shaft bushings, perhaps. base gasket? is there a factory ac delco pcv valve rammed in that valve cover grommet? theres a start on the simple items that getcha. base timing also.

 

the pcv has ben changed, but will ck the rest taht you said, thanks alot sean