Great info, AJ. Thanks. Does sound a little scary though. The car is a '72 but the motor is a '70 340 with some very mild work done to it. I should have mentioned all that initially. I guess I'll have to do a compression test. Probably should do that anyway since it probably has about an hour running time on it in the last 30 years. ALSO, over the last almost twenty years since I last ran it, I've probably sprayed some WD into the cylinders about a half dozen times and free cranked it to try and keep the cylinders somewhat clean. I'm sure what didn't dry seeped through the down so I just did a fresh oil change. Will do another after it runs for a while. My biggest worry was the lead free gas but it sounds like that's not that big o' deal?