I know I will catch a lot of flack on this but when I pulled the dist. out to replace the points and condenser on the 56 chrysler because it was so hard to get to I noticed some sluge oil on it and after I get the carb. rebuilt I was wondering about an engine flush. I have read when it lossens everything up and motors run better and then where it gets rid of the gunk but can cause the oil pump to get clogged with the gunk and seals that have been protected by the sludge have started leaking. I also notice when I shut the motor off some smoke comes out the oil filler tube. Now when the carb was working good the motor ran like a top. So let em loose whats your guys advice? Thanks. Bruce. P.S I don't have a lift so dropping the oil pan would be a problem.