"TQ's are great if you fix the throttle shaft slop in the rebuild. Also buy an air door tool off of Doc.

My 511 '67 Cuda got 14mpg combined with the 6pak."

I noticed on the 1st 6-pack build (mild 440 w/ 528 solid) I was getting pretty good milage. This build is much more agressive and on the last trip to the track (22 miles) I avg'd about 13-14. Not bad considering I got on it a few times. This is mainly backroads (45mph) stopping in 4 small towns.