Need recommendation for a Carb for better MPG!

RustyRatRod said

If he will confirm what gear he's running......a 3.23 for example ain't gonna get what I call "good" with a 340. 17 would be about what I'd expect. He could probably bust 20 with a change to a 2.76, for example. But he needs to know what he has now.

Click to expand...

I just mean for the OP he's got to be careful and keep $$$ investment low to actually save money, he could easily spend 1000's of dollars for relatively small mpg gains. Generally for it to be worth it the mpg mod should pay for itself in at least a year or two.

Say at..
5,000 miles at 17 mpg x $3.25 a gallon = $956
5,000 miles at 20 mpg x $3.25 a gallon = $813
$143 a year savings minus cost of mod.