I'll be watching this thread...
I love the fact that you are using a 2 bbl carb, my personal opinion is that they are highly under rated for just a cruiser.
Everything it seems to revolve around big head flow numbers, a big cam, headers, high compression, and a big 4 barrel and intake with headers buzzed up to 8,000 rpm or you won't be happy.
True, if you used a 4 barrel with small primaries and didn't open it up to full throttle, you might get some mileage gains, but I like the 2 barrel BBD carbs.
The gears have a big factor as well.
My suggestion is 2:76s and a 28'' tire or thereabouts.
And lastly, gas mileage is primarily controlled by your right foot!
lol
