Yep. I had a 65 Skylark GS in the sixties that had 3x2's and cheater slicks for traction. I beat a Corvette off the line and outran 396 Chevelles. Very impressive when all the carbs opened up. Fantastic bottom end.
At first I was thinking about going with a 2x4 setup but lately I've been looking at 3x2. I know its not a performance setup but the look of it makes up for it
Everyone has the "dealer option" 2x4 setup and Buick aluminum valve covers, me I am going with the chrome option valve covers and maybe Eelco 3x2's with Rocherster carbs. I was hoping I could use GTO style linkage and air cleaners. I say do something different, besides 3x2's definitely look great on a nailhead.
If 3 are good 6 must be better Im going to be running 6 Holley 94's on a Weiand dragstar in my model A
I like tri powers on street cars. They give the economy and throttle response of a 2bbl and performance of a bigger 4bbl. I have one car with a single 4bbl, one with 2 4bbls, and one with a tripower. They all run fine if tuned correctly. I run all the multi carb setups with progressive linkage. If set up correctly, you run off one carb at light to half throttle or all carbs when the pedal is on the floorboards. Best of both worlds. Anyone running straight linkage on the street is either to lazy to set up progressive or too ignorant to realize what they are doing.
Got a a 3x2 setup on my 425 Riviera project. Hard to beat the looks of a 3x2 plus the economy of a 2bbl when you are putting around.
The Eelco looks to give more hood clearance, which can be important if you want to get the hood closed on most air cleaners.
Obviously, it's personal choice. However, I'm not interested in "appearance" which is only visible when: 1. parked 2. with the hood up and especially when the parts are faux speed equipment (i.e., slower than factory parts).
If you go with 3x2s ,,, go with holley carbs... you will be glad you did....they work really good,,,, look really boss and have all kinds of accessories available for them....you can go with mechanical or vacume linkage for a cleaner look.... and ... they have lots of ''wow'' factor.... holley 2 barrels are available in sizes from 350 cfm to 500 cfm.... Hint.... when the factories wanted to go really fast they used holleys.....back in the muscle car days.....
I found an Eelco 3x2 for $350 is that a good price? I was advised to use 2GC carbs is there any major difference between those and Holley's?
Kitabel, your saying that a stock AFB will out perform 3x2's? That has not been my experience. Volume and distribution should be much better with three dueces? Am I missing something here?
Assuming equal manifold performance, you need pretty big 2 bbls. to exceed a 750 4 bbl.: obviously, 250 each, which is the actual flow of a Holley 350 2 bbl. or the Olds/Buick 2G. 3 97s, etc. won't do it. There's also the problem of adjustment. What percentage of the people who consider buying a 3 2 really know how to jet a carburetor (no, I don't mean "if it's too lean, you need a bigger jet", I mean power valves, metering rods, air door adjustment)? 20%? less? Getting 3 carbs that came on a completely different engine and were never used in combination needs much more work than linkage. What they don't know means it's slower, the factory stuff is much closer to working already.
how do you arrive at the 250 cfms for a carb that holley says is 350 cfm??? Seems like a guy could run a 350 cfm center carb and 2 of the 500s on each end and come up with 1350 cfm total.....cruize economy class and then blow and go when you get on it.....
