Hi...Im new to the site, just looking for some advice. I got into an LT1 car about a year ago so i still dont know a lot about them. My car shakes when it sits like its misfiring, but it is fine when you drive it normal, but when i really get into it I can tell there is a miss and it cuts out real bad....my buddy said it might be the coil..i was just looking for some more advice to what it might be, before i go tearing my car apart...if anyone could help i would appreciate it...thanks

 

Condition of plugs and plug wires should be the first thing you consider. If you don't know their condition, change them.