66340 Love that Sebring-Very cool! (EL5) That was a Car Craft tested number in August 1974 14.6 in the quarter for the 360. Change the 3.21 gear to 3.91 and it will most likely go right past your 340. Look it up. You can see the Article on e-bay. The title is Duster 360 the last Supercar.
