I was thinkng of buying a new carburetor and was looking at the 350 cfm Holley 2-bbl. 2300 series carburetor. The price is a little high ~$250.00 but at least its new and I only need one (as opposed to the three on my Super Bee).

I figured you guys would know better then I would.

Are these good carbs?
Good points vs. bad points?

Slant Six Dan seems to be the slant carb expert around here. Hopefully he'll chime in.

My engine is currently stock, however I have the engnbldr big SS valves ready to go in. I also will open up the exhaust manifold collector as big as possible and bend my own 2.25" exhaust for the car. The car is a 1974 so it has electronic ignition. It also has 3.55:1 gears and a 4-speed. It'll porbably end up using the HEI mod as well.

_________________
1969-1/2 Dodge Super Bee A12 (440 Six Pack, 4-spd, Dana 60)
1974 Plymouth Duster 360 (4-spd, 8.75")
1973 Plymouth Duster (225, auto, 8.25")
2001 Dodge Ram 1500 QC 2wd (5.9L, auto, Dana 60)

I have one that I like, pretty good power, good MPG. With a big exhaust, you could get more power from a 500cfm model, but you would also use more gas.

I figured a 500cfm carb would be much more carburetor then I needed for this car.

I will eventually get a hotter cam (not a race piece; just a good street grind), however this car is pretty much the last one to get anything, and it's in a long line...lol.


Would it be smarter for me to get the/a 500cfm carb?

_________________
1969-1/2 Dodge Super Bee A12 (440 Six Pack, 4-spd, Dana 60)
1974 Plymouth Duster 360 (4-spd, 8.75")
1973 Plymouth Duster (225, auto, 8.25")
2001 Dodge Ram 1500 QC 2wd (5.9L, auto, Dana 60)

Daniel,

Dunno the value of my suggestion since if I was smart I woulda saved a lot more of what I made the last 50 years, but here goes! I went from 1bbl to a 500 cfm Eddy 1404 performer. Biiiiig change that I loved. Then got to wondering if I could get the power from a 2bbl. Well, clearly no, but got great mileage. Then to try a compromise I put on a Holley 8007 390 cfm. ALMOST as much power as the 500, but not quite there, but mileage not as low as on the 500. I many times thought I should put the 500 cfm back on but I had made high rise adapters and a linkage for the Holley that wouldn't work on the Eddy so was too lazy to redo that work for the Eddy 500. I sold the Eddy to avoid temptation but still wish I had it on after using all three above.

As to "too much", you will find strong differences in opinion here, but I do believe it is very vehicle specific, engine specific, and driver foot specific. I have a well built head with the big valves, extensive porting and milled .100, plus a cammed block, all driving a heavy truck built for torque with a 727 and a 3.91 positraction. Unless a car was heavier than a truck I don't see why the 390 cfm wouldn't be great for a car. Heck, it works fine for me on the truck! But I sure did like that 500....even though it would take a dyno to quantify the difference, one I can't really describe. AND, that 500 was on before the 390 and I had never had a slant with power, so may be fondly remembering a kick that in retrospect may be the same as the 390 right now. Lemme tell you , it is as Agressive Ted reports, when I stomp it it is gone right now and bye bye rice burner.

rock
'64d100

Interesting.

I forgot to mention I will definately be getting the head milled .090-.100" as well.

I am also definately staying with a 2-bbl. set-up either way.
I figure the slant with a 2-bbl. will be my "limitation car".
If I go to a 4-bbl. I'll just keep chasing after more power until the car is no fun to drive anymore and I'll have way too much wrapped into it the same as I have many times in the past with a lot of my other cars. I do not need it to be a race car, thats what the big block cars are for.
I have the complete Super Six set-up already, but if I get the Hollet 2300 carb it looks like I'll need a regular 4-bbl. style aftermarket air filter too.
I do not feel like spending much more money on this car as I just want it to be a fun cruiser.
That being said I also want to get as much performance as possible out of it with the above set-up, know what I am trying to say?
All while maintaning good fuel economy.

Not asking too much is it?...LOL


Will the Holley 2300 series bolt onto a stock Super Six intake?

_________________
1969-1/2 Dodge Super Bee A12 (440 Six Pack, 4-spd, Dana 60)
1974 Plymouth Duster 360 (4-spd, 8.75")
1973 Plymouth Duster (225, auto, 8.25")
2001 Dodge Ram 1500 QC 2wd (5.9L, auto, Dana 60)

I personally like holley 4412's on heavily modified engines because you can adjust and tune like a regular 4bbl. But I would never buy one new. You do realize that the 2300 series has a wide bolt flange and will require an adaptor to a super six intake? I've run motorcraft 2bbl carbs in place of the holleys on close to stock engines, they work well and are cheap to find/rebuild. I also like the mid 70's carter BBD's because of their adjustable main fuel metering, it is easy to get setup for mileage and they have better low speed metering than the older holley and carter 2bbls.

Or Run a Feedback BBD from a 4.2l with the computer for closed loop fuel control!

Rock,

Between the four carbs, can you remember your average mileage with each one? Just a general feel for each would be good. It would be interesting if there are any significant differences in mileage between them or if they are all the same. Your truck has been a pretty good test bed. How much does it weigh?

1. 1920 Holley
2. Edie 500
3. 2300 Holley
4. 390 Holley

Thanks,

_________________
Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG

you will need to purchase the Mr.Gasket 1937 adaptor... and make sure to seal your plate really good.

-D.idiot