I have a 69 396-325hp. When I crank it in the mornings it spits out a black watery type substance out of one of the exhaust pipes and makes a pretty good mess in my garage. Is this normal or is there something wrong with the engine. It runs great.
This is normal. It is just water from condensation in the exhaust system. All cars do it, you probably notice it more because yours is in the garage. Most newer cars are not as bad because of the better fuel management that fuel injection gives.
Keep on driving
Advanced Automotive Machine
1971 Chevelle "Heavy Chevy" original owner
1973 Z-28 ..one family car...Brother bought it new in 73