Yes, there is a good chance that carb work or even replacement could improve your gas mileage.
But, first, we need to know which Holley carb you have to be able to speak intelligently about what to do. There should be a "LIST" number on the front side of the carb, right by where the choke butterfly should be. What is it?
__________________
I'm on the Instagram- @Gearhead_Kevin
|