1973 450 SEL Soot on garage floor
Its been a while. I recently moved to a home that includes a garage. The potential of now permnantly housing this beauty in a garage is good.
However, I recently noticed a patch of soot starting to accumulate around where the exhaust points at the floor. I never noticed before because my previous home had gravel in driveway.
What are some potential causes for this? I am guessing that it may be running too rich; can this be the problem?
All opinions and expertise are welcome.