rustygold
Full Access Member
yes TDC just in case the the breaks off some people say you can get it out of the injector side but I never had to do that. And alway go back motorcraft well worth the extra bucks. I did a test of autolights and motorcraft 30 to 40 seconds to Explode. MC took 100 to 110 seconds before it mushroom out little bit. Now I did have a freind he broke off the tip and started the motor and let it go out the exhaust side but thats a no no. It is a soft metal so it well flatten out easy but get one stuck on the exhaust side say hey to head work.