Need recommendation for a Carb for better MPG!

273 said
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.

This is some pretty great perspective, and you are spot on! I didn't think of it quite like this but also thought if I could get maybe 3-5 more mpg I wouldn't have to stop for gas so much with our 16 gal. tanks. My commutes are 60 miles a day. I am very good at driving in an efficient way so I know my 340 can do better. Thank You!