I'm new to the site and look forward to reading and asking questions. I bought a 56 thunderbird with a 312 4 barrel and it runs ok but when first started up
it spits out black soot all over my garage wall . Not oily, but powdery because i can wipe it off. I was thinking of getting my carb rebuilt,
but don't want to spend the money if it will be just a small adjustment. Any help will be appreciated.