Edelbrock S.P.-2P. 318 2V Does it even exist??

Second time...

My buddy did the complete Ebrock system to his 454 dually...I used to haul my dirt car one night and couldn't get 250.miles out if two tanks if fuel.

Not a good story... =(
My buddy and I got 10 mpg in his 454 dually, pulling a trailer full of parts and the 8' bed had 23 8 3/4 gears in it. (most with Detroit Lockers) His is all stock with a 4.10