If you're ever in doubt about the right tune on a Q-Jet, track down an NHRA Stock class racer, these guys have been tuning and tweaking the Q Jets since they came out and know all the tricks, tips, and "secrets" of getting them set up right! Had an old pal, who class raced in Stock with a '67 Nova SS since a week after he bought it brand new, man, could he make them work! Years ago I had him do one for me and put it on Jackie's Caprice, she kept the car for 10 years of trouble free driving, the car had an overdrive trans so with the A/C going full blast and cruising at 70 to 75 on the cruise control the car would do right at 22 mpg! Only thing we ever owned after that as trouble free was my '05 Bonneville with EFI!