QUOTE(Racer @ Oct 10 2020, 06:13 AM)
Just cause those rubber lines look ok, doesn't mean they are. You don't mention how long sitting, but rubber breaks down pretty easily. Check em again. Most often times these cars start to "pop/fart" is because they lean out.. often due to a vacuum line leak.
Then lets also consider other items.. spark plugs? points? condensor? valve adjustment? recent timing set?
Do you know why the car was sitting? was it not working when put away?
Car sitting since 2012 was serviced at that time by shop. have receipt ,points plugs valve ajust timing set! Car was in a garage I will change all vaccum hoses It idles at 1400rpms when warm .Trying to bring my gone brothers car back to life!