Yea...I installed a 1996 318 Magnum engine out of a truck , installed an R/T cam, with a Mopar Performance 4BBL intake and Edelbrock 600 CFM carb with an A-518 and with 3:55 gears for a Customer. It runs real good and I am hoping the customer gets colse to the 20MPG with it also.

I have heard of 440's with six packs on them getting 16- to almost 20 mpg.....I had a 69 GTX years ago and I installed a 6-pack and I am quite sure I got 18 with it..