Thanks for the info and suggestions. It sounds like the general consensus is that I need to find out exactly what was done to it. I actually know the mechanic's name that Pop had do all the work. I'll try to track him down and get a list of what mods he did on the car. Those will be good to have anyway if I'm going to show it. As for now, I guess I'll try to find some good clean gas here in town and use that. Thanks again.