Carburetor question

[Zandoz]

4412 Holley 500cfm on a modified TBI intake
Crower mechanical cam 248@.050 .479lift Intake
Crane roller rockers & CD ignition
5spd 4WD 3.73 axels short bed pick-up

I did not have good luck with the edelbrock manifold for my hill climb truck.
The eddy is way down on WOT power compared to the modified TBI intake.
- 3 ports on the eddy are half-sized to boost towing torque
I needed WOT power, not towing mid-range for my application

…I don't think a 700R will stand a chance against a 5spd- I've run both - day & night

My build is going to be a street cruiser...zero racing...and other than intake, distributor, and headers it's going to be a stock engine. Actually, the main reason for going with the Edelbrock is that I got it nearly new for what I'd have to pay for a bone yard TBI manifold...and still have to modify it, and still have the same TV hookup issues.

[geoffinbc]

Not sure if the stock GM carb manifold will work better or not but GM mentions the stock manifold can be modified to mount a 2bbl Holley.

As for the TV cable it really should not matter what carb you have. There are plenty of universal brackets that will help you get set up. TCI, Holley and Jet are just a few who make them.

[666Racing]

…I don't think a 700R will stand a chance against a 5spd- I've run both - day & night

[666Racing]

2.8L with Holley & TBI intake

4412 Holley 500cfm on a modified TBI intake
Crower mechanical cam 248@.050 .479lift Intake
Crane roller rockers & CD ignition
5spd 4WD 3.73 axels short bed pick-up

I did not have good luck with the edelbrock manifold for my hill climb truck.
The eddy is way down on WOT power compared to the modified TBI intake.
- 3 ports on the eddy are half-sized to boost towing torque
I needed WOT power, not towing mid-range for my application

[Zandoz]

[ATTACH=CONFIG]8178[/ATTACH]

What Version of carb is that? Is it mounted on a TBI manifold?

[666Racing]

[Zandoz]

Wellllllll....more than a bit of a hitch in my 2100/2150 plans....hooking the 700R4 TV cable to it. I know the 700R4 is really finicky about the TV cable workings, and after several hours of of searching I've only found one off-hand mention of it being accomplished with a 2100/2150.

So now the question becomes what is a simple 700R4 friendly carb, that there's a chance of getting a reasonably priced rebuilt or usable condition used example.

[Zandoz]

I have a 5 speed S10 with a 3.4 from a 1995 Camaro. I went with the Eddy intake and the Holley 390. I also have the Mallory dual point dizzy on the same motor. It has a HUGE cam and a bunch of other stuff (headers, big exhaust etc), It runs high 14s in the 1320 and is completely reliable.
BTW, I have put over 30 K miles on the points and have not touched them.
Points you say?? As long as you have a decent condenser, points last a hell of a long time!
And as far as the carb goes? The 390 has smaller primary venturis than most Holley 2 barrels. I get about 21 MPG at 70 MPH (!!!!) on the hiway with this engine. Don't know why, but I have checked it many times between Baton Rouge and Syracuse, NY. Around town, it sux, but I drive pretty hard.

Ok, bang for the buck, 2.8, cam, timing chain, dual point Mallory, Eddy and Holley 390, headers and big exhaust. You will be surprised in a light chassis.

Do it... do it... do it!!

An fer gawd's sek, post pics

All sounds good to me. In my case, I won't be going farther than the intake, the distributor, either lake or zoomie style headers, Fiero valve covers, and a Model T green paint job. Right now I'm leaning towards the Motorcraft 1.08 venturi, 287 cfm, 2100/2150 to start with...mostly as a matter of cost and simplicity. Building this hot rod from the ground up, so I have to stretch the budget to the breaking point...LOL.

When I get to the point where there's something pic worthy, I'll start a build thread. Right now it's just parts scattered everywhere.

[Mad Max]

Actually, I kind of envy the guy I got them from....what he's replacing them with is way cool.

I have a 5 speed S10 with a 3.4 from a 1995 Camaro. I went with the Eddy intake and the Holley 390. I also have the Mallory dual point dizzy on the same motor. It has a HUGE cam and a bunch of other stuff (headers, big exhaust etc), It runs high 14s in the 1320 and is completely reliable.
BTW, I have put over 30 K miles on the points and have not touched them.
Points you say?? As long as you have a decent condenser, points last a hell of a long time!
And as far as the carb goes? The 390 has smaller primary venturis than most Holley 2 barrels. I get about 21 MPG at 70 MPH (!!!!) on the hiway with this engine. Don't know why, but I have checked it many times between Baton Rouge and Syracuse, NY. Around town, it sux, but I drive pretty hard.

Ok, bang for the buck, 2.8, cam, timing chain, dual point Mallory, Eddy and Holley 390, headers and big exhaust. You will be surprised in a light chassis.

Do it... do it... do it!!

An fer gawd's sek, post pics

[Zandoz]

Actually, I kind of envy the guy I got them from....what he's replacing them with is way cool.

[Ghosteh]

All I know is that you got a hell of a deal on those parts! I feel sorry for the guy you bought them from!

Let me check my paperwork & see what size carb I had for that setup. Of course, it never was finished, but all the parts bolted up together nicely.

[Zandoz]

Yea I looked it up. Wow points! I wonder why they make it when the OEM distributor is HEI? Personally I would be going with HEI because it is more reliable and maintenance free. Hope it all works out.

The reason I went with it was that it is a new unit for less money than I could get a rebuilt non HEI unit...and I've never seen a rebuilt HEI for sale. Points don't worry me...I was setting points before I was out of grade school. And there are reasonably priced kits to go electronic if I decide I want to. This is going in a fair weather use hot rod, that's not likely to have enough use to make points maintenance a PITA.

[geoffinbc]

I got the distributor just the other day from another member here. It's a Mallory unit with both vacuum and mechanical advance. Last I knew Summit carried them.

Yea I looked it up. Wow points! I wonder why they make it when the OEM distributor is HEI? Personally I would be going with HEI because it is more reliable and maintenance free. Hope it all works out.

[Zandoz]

The 4bbl 390 CFM carb has smaller bores then the 300 or 350 CFM 2 barrels and on a stock 2.8 that would be a good thing for street use.

Hmmmm....I did not know that. I guess I'll keep the 390 4bbl on the short list.

I did a bit more research, the venturi size of the 390 cfm 4bbl has 1.06", the 2300 350 cfm 1.19", the 300 cfm 2100 1.14", and the 287 cfm 2100 1.08". It sounds like if I go with the 2100, I'd probably want the 287 cfm version.

[Zandoz]

Any small 4bbl will work and as long as it does not have mechanical secondaries it should work very well on the street. But your other choices are also good. Going with one you are familiar with and that is reliable is a great idea. So long as the carb provides all the air flow the engine can use then you wont limit power production.

Did you really find a dual points distributor to work on the 660? I have never herd of one.

I got the distributor just the other day from another member here. It's a Mallory unit with both vacuum and mechanical advance. Last I knew Summit carried them.