it really depends on how its set up.a holley,carter,or edelbrock can all give the decent mileage/power if tuned correctly.ive had good results with TQs,but they can be a pain to tune.
Which carb gives the best MPG and power?....the one that's tuned correctly runs the most efficiently! There's no one carb that's going to be the golden ticket out of the box. Keep what ya got as long as it's in the right CFM range and tune it...if you have the Demon and the Holley...tune both and use the one that responds the best. Dont waste money buying an Edelbrock...
