I just installed the LT4 hotcam but my car wont idle. Its real close but I have to keep my foot on the gas or it dies. Also the car overheats, still trying to get all the air out, just replaced headers. Can the idle be adjusted?

 

Idle can be adjusted with PCM tune. Which you should get with the LT4 hot cam anyway. There are some "free" tuens out there on the web if you have a way to load them. http://www.zeeya.cz28.com/tuning.htm