OK, I am a little confused. I have an 88 3.8 and decided to check the timing. I have the notch painted with my wifes white nail polish (works great), and the pointer coming off the engine is rather obvious. My car, like most 3.8's is suppose to be set at 10* before TDC. Is the notch TDC? I have the Snapon timing light, with adjustable advance, hooked to cyl #1, front passanger side, right? My timing light shows @ 30* BTDC with the spout removed. Now it seems to run OK here, I have never messed with it before. But I think I am doing something wrong and would like to know how to do it right. If you hook up a standard timing light at idle where should the timing mark appear to be, an inch before the notch. Help?