You may want to check with the carb vendors listed on the '62-'65 site's vendor's page. Also, if you can find a Carter BBD service manual, it should have the jet size. Maybe some one here has one they can look it up for you. http://carburetor-manual.com/1963-1964-1965-1966-plymouth-carter-carburetor-shop-manual-p-1309.html is a link to buy a manual. http://c803310.r10.cf2.rackcdn.com/bbd_carburetor_manual.pdf is a manual online that may help (American Motors version). How's this for a trial and error test? "To determine if you have the correct jets in your carburetor, operate your vehicle for 20 minutes at sustained speeds. Stop and pull a plug. Gray - Good, Black - move down one jet size, White - move up one jet size. Do it all over again until you get a gray plug." http://www.carburetor-parts.com/Carter-Main-Metering-Jets_p_78.html Thanks, Gary H. > -------Original Message------- > Hi – I want to make sure that my Carter BBD carburetor has the proper > size jets. The factory manual calls for jet # 120-294S but does not > indicate its size. Unfortunately, none of the jet suppliers use the this > number – they only go by size. Does anyone have information on the size > of the standard jet for the Carter BBD used on a 1965 273 A/T? Thanks -- -- -- Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en. --- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxxx For more options, visit https://groups.google.com/d/optout.