Please provide your experiences with the Edelbrock CH28 dual 4 bbl intake setup. Good, bad etc. Looking into this as a potential for my 440 in my 66 Coronet and have not seen much feedback on Moparts over the years. Edelbrock has some good installtion information online for initial setup but am looking for real-world feedback. Yes I know a 6-pak is a better setup... Thanks in advance.

don't have direct experience, but have a friend who has one on his 440, dual 650 carters, i believe. he likes it, but also knows that it is more for looks. with the relatively stock setup, (rebuilt engine with a good cam, slightly higher compression, mildly done heads, headers), he knows he could probably do better with a single 4. but he's happy with it.

I have a 505 motor with the CH-28 setup headed to the dyno in the next few days.

My buddy in Oz has had one for a while. It's on his '68 Satellite convertable now.. It's just a cruiser and he likes it

andy, are you planning on also trying the intake with 2" tall adapters when dynoing ? the racer from canada believe his name is don (with the heavy charger)always used 2" risers with this intake. think he was the one that said the ch-28 would not mph but would et better than the other intakes he tried. also in the past have seen old engine pics of stock/super stock cars using the ch-28 intake and believe they also used 2" risers under the carbs. must be worth something, on the track anyway but maybe not the dyno was just wondering if the risers would show anything on the dyno. they must help at the track for all these cars to be using the risers. and on your book lots of good info.

Andy,

I see Thunders What size? and have you run them as duals before? Any differences to setting them up in pairs opposed to the performers? Are you going to run progressive linkage or lock them together? I have an offy dual quad setup for a low deck... lots of questions here.

Thanks guys for the feedback so far. I'm curious on the Thunder carbs as well. Have an 800 Thunder on the car now and sure like alot better it over the 750 Performer.

I have run that set up on two 440 challengers. Fantastic set up. Im sure its not as strong as an RPM or Street Dom on top end but most HOT STREET 440s run best shifted at 5800rpm. The set up looks so damn good on a big wide 440. Its a ton less $$$$ than a six pack set up and alot easier to get spot on than the six pack. It does not have the history and following of the sixpack but the performance it gives and the looks of admiration it commands will make you happy you went with it.

They work great and actually have real good flow numbers.

I wish Edelbrock made a dual carb manifold for the 340-360. I am gonna run this on my 360. Its an Offenhauser single plane for the 273-318. It will make much less power than an RPM and a good single 4bbl but I love the nostalgic looks of "Dual Quads"

i'm runnin it ,using 600cfm carter competition series carbs...it's not the fastest set-up, but i like it..you can't beat the nostalgia look of the dual 4's.. ...i can't really speak to the streetability of it...i had a few issues at first gettin them to idle(i had no instructions or exp.)..but with alittle help from a few of the members here, we got it to run. car idles fine and drives good at low throttle thru the pits- with no problems...

I'm using a CH28 on my '62 Sport Fury convertible. It has a more or less stock 440 with a 280-480 cam. I'm using two Edelbrock 500's with progressive linkage. I'm very pleased with the set-up. Admittedly there are lots of single four set-ups that would out perform the 2X4's. But my car is a driver/cruiser not a race car. The 2X4 set-up gets lots of looks and comments at cruises.

I am actually building one this winter (*sort of)

I am using my existing 440/4bbl/906 and removing the 906's to replace with Eddy's, then follow through with removing the 906s and going to the Performers. The final upgrade will be the dual quads. Now my engine is set up at 9.5:1, Isky Mega 280, converter flashes at 2600, I have gear vendors and 3.55's. I am going to use the Eddy 500cfm's. I have the entire set up mocked up on my spare engine which is bored and stroked to a 512 which was the original intended target. I have been collecting the CH28 parts for about 6 years now. My last job before the surgery is to do some gasket matching and grinding with the dremel on the ports. (I spent $90 at the store last weekend for dremel bits) My intake is ceramic coated as are the headers. I purchased AndyF's book and its a delight to read. All the different setups and accessories to use. There is no direct section on CH28 (its mentioned though)

There is no real world book on dual quads and I have never been one to be like one of the rest....The intimidation factor of when you pop that hood open and everyone adorns the duals....its a sight to be reckoned with. No one wants to race you at that point. Its kinda funny..

1st pic is the actual setup.....2nd pic shows the height...I know I am going to have to mill those stacks about halfway. There is no way those are going to fit under a stock 69 Charger hood.

I look forward to hearing of your experience and tuning with it as I am sure we will get to know each other better in the coming months trying to figure out tuning

Very nice Pyper! Dialing in the CH28 is much easier than the 6 pack. I ran 2 500s on my street duty challengers. Used a direct linkage-1 to 1 as recommended by an Eddy tech. With my 509 cam the step up springs needed to be changed out. Im sure my set ups were not optimized for the strip but man they did not miss a beat! The sound of all 8 barrels gettin it on is a wonderfull sound. This setup is no sluch. Many are quick to condemn it. I believe this set up is not the compromise that the Offenhauser 2x4 proved to be in Dulcichs 383 intake dyno shootout. On a 440 the manifold is rated to 6000rpm. Many on this board who have big cammed 440s find they run there best times shifting under six grand- despite their cam being capable of 6000 plus rpm.

There was an article in Hot Rod a few years ago that talked about this set up (Dulich), and it worked well.

I too want to see the dyno results, as I have this on my unfired 512.

Can someone post a close up pic of the linkage/throttle cable they used?

Here's mine. I mated the eddy base with an A12 repop base, so it seals to my hood.

For awhile I wanted the Edelbrock D66. Its a dual carb manifold for the small block mopar. Later I was informed the D64 and D66 are both for the 273-318. I went with an Offenhauser (Its application is 273-318 as well) cuz its available brand new and its single plane design should still feed a 360 adequetly. Is see for big a small block chivy one can get a dual quad in standard AND Air Gap design.