340 w/ 650 double pumper ?
Though my example is not a mopar, my experience is that most people over carburet on the street. I am using a 600dp on my Datsun 280ZX. It has a 355 chevy with 9:1 comp. Vortec heads, 510/305 cam, and a modified Performer intake with a 1" spacer. If it is set up correctly, it should work well on a 340 on the street.
Though my example is not a mopar, my experience is that most people over carburet on the street. I am using a 600dp on my Datsun 280ZX. It has a 355 chevy with 9:1 comp. Vortec heads, 510/305 cam, and a modified Performer intake with a 1" spacer. If it is set up correctly, it should work well on a 340 on the street.