sounds over carbureted. Smokey Mt Frank In a message dated 10/23/2011 10:39:58 A.M. Eastern Daylight Time, johncgg@xxxxxxxxx writes: stopped on the road side yesterday, while taking the El Camino for a cruise, when I saw my friend Ed with the hood up on his Cobra. He had gotten rid of the 4 barrel carb and intake, and put 4 Dual Webers on the 427. He said it sings above 2000 rpm, but sucks below that. The guy that sold it to him has been sending him different jets to play with but he has had trouble ever since going to that set up. I I am glad I don't have 8 idle screws. I would suffer through the experience though