Edelbrock Thunder Series AVS?

Hey i am looking into buying this carburetor in the 650cfm electric choke setup, i currently have a Holley Street Avenger 675cfm and was wondering if i was going to see a drop in performance with this carb and if anybody has it..
my combo is basically this...
s.b. 360
Ported X heads
Hydraulic Comp Cam .511 lift
air gap intake
TTI Headers going into 2.5 inch exhaust all the way out
MSD ignition everything
P.S. its either this carb or just keeping what i have now, but the main reason i am getting this carb is to hopefully get a little better fuel economy without sacrificing performance/responsiveness since i currently am getting 12mpg on the freeway and its killing me
Author: admin