i have a 1958 dual quad poly manifold that i put adaptors on so i could run carter 400 afbs on but i am having a problem the car is a 1963 dodge 440 with a 318 poly motor i have put the carbs and headers on an it has made a big difference in performance but i cant get them to idle any lower than 1800rpm the timing is perfect according the timing lite but the vacum gauge says the timing is out i have looked for a vaccum leak but cant seem to find one any ideas? the heat exchange has been welded up the original carbs are wcfbs but the 400s were easier to come by ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.