Great.....and thanks...( more confusion ).....with the vacuum connected the actual timing reads over 20 degrees. The service tag calls for 12 degrees..question: when / how do I find the 12 degrees? I have a small stumble when I stab the throttle - to the point where it feels as though I have to "backpeddle" a little in order for it to go. It won't even spin the tires a little bit in a gravel driveway - but has great acceleration and tonnes of power on the highway.........the lag off the line is killing me. Your response(s) are GREATLY apppreciated!!