However, I came across this article and was wanting some opinions on the validity of this piece as well as any tried and true recommendations regarding fuel delivery options from you guys.
http://www.badasscars.com/index.cfm/pag ... prd440.htm
A 600 cfm 4 barrel (speaking about square bore carbs here) has a 300 cfm primary and a 300 cfm secondary. That means for MOST of your driving needs (under about 1/3rd throttle) you are actually driving around with the equivalent of a 300 cfm 2 barrel, so right out of the get-go a 600 cfm carb is actually SMALLER for normal driving conditions than a 350 cfm 2 barrel. This means the 600 cfm 4 barrel will actually have better throttle response, quicker off the line power and much better low-end get-up and go compared to a 350 cfm 2 barrel. This is compounded even more (to your advantage) when you are talking about a vacuum secondary 600 cfm 4 barrel because no matter what you do, if you mash the gas pedal to the floor, ONLY the 300 cfm primaries will open UNTIL the engine can create enough velocity through it to open the secondaries, unlike a mechanical secondary carb where if you mash the gas to the floor, all 4 barrels will open up and TWO accelerator pumps will squirt fuel into the barrels, thus causing horrible gas mileage if you do that at too low of an RPM. Now obviously if you have a mechanical secondary 600 on your car and you drive with your foot in it pretty much continuously, then that's a bit different other than the fact that any other time, the 4 barrel will out perform the 2 barrel for throttle response and gas mileage.