The engine runs pretty good from all appearances that can be deceiving It sounds a bit on the ruff side and Im sure the carbs could stand some work also.. Lifting out the engine and the tranny would be allot of work for the tools that I have. I have read that you could ream the lines with speedometer cable, is this and option for me.? I realize what Im asking is a way to ream the entire line from the engine compartment and that might might not be so feasable but I was able to put some air thru it and to my surprise a big wad of the tar was blown out. There is no way I can tell how far it went up but I am able to push air down the entire line. I've tried to desolve the tar substance with what I have in the garage but the standard cleaners I have don't cut it at all ,, any suggestions as to how I can clean the lines without having to totally remove them? Help would be thanked...