1992 S10 Blazer 4.3 with 207,000 on it should i use Sea Foam. whats your take on this product that people say does wonders for your auto?

 

it works. amazingly. It removes all the carbon buildup in the valves and everywhere else. Dump into the intake though, not just gas tank. There is a really good how-to on seafoam cleaning on this site...search for it