I have a 1987 toyota pickup i want to add sea foam treatment to a line that hits all cylinders and cleans everthing up. can someone help me and and tell me which line will do this

 

Pull the big vac line off the brake booster. This runs into the intake and will get the tops of all cylinders. Most guys will add it there.

Pour it in SLOWLEY, put your thumb over the bottle to prevent too much from going in. Hydrolocking is unlikely, but is possible. I belive a member on here threw a connecting rod by adding to much at once.

Put 1/2 in the intake and 1/2 in a 1/4 tank of gas..