Hank, what is the fuel economy comparison between the sidedrafts and the single 4? I'm thinking sidedrafts could help me put a 250 into a '55 Stude and give enough hood clearance.
If you find or use a good/correctly sized DCOEs,you should get better fuel economy as long as you can stay out of the throttle,which is really hard to do B.T.W.
If you drive aggresive,,the 6 barrels will gulp quite a bit of fuel,so all bets are off for mileage in that scenario.
Look for DCOE'S that have multiple transition holes near the throttle valves like about 4 as an example. This will give you better driveability & throttle response.
A set of 40 MM carbs will work even if you can't find some 45's.
You can change the choke tubes for more power if you want or smaller choke tubes which will give you better mileage when properly jetting.
Once you get the corrct emultion tubes,jetting the rest is not too difficult.
But it does take some time, & need extra jets to know which way to go on the jetting.
But w/todays wide band readers readily available, that alone will take out the guess work involved to properly tune.
MBHD
