Carburetor question ?

Holley list 1850 600 cfm vacuum secondary carb wit mechanical choke. Bolt it on, folowing the instructions, adjust the idle speed screw til it just barely opens the throttle. Then adjust the mixture screws ( on either side of the primary metering blocks) all the way in ( clockwise) then back each out ( counterclockwise) 1 full to 1 1/2 full turns. Also might be a good idea to remove the bowls before bolting the carb down to set the floats, this can also be done of the car without removing them, but is hard to do with a mechanical fuel pump ( engine needs to be running then, making a fuel spill inevitable) To set them off the carb, remove them, then invert them and see if the floats are parallel to the bowl tops, if not then they need to be adjusted so. To reinstall them, be sure to dip the fuel tranfer tube O rings in brake fluid before installing them, otherwise they'll tear and leak. After starting it up, let it warm up to make final idle speed adjustments if you do this while the engien is cold, it'll increase once the engine warms up. I would also suggest changing the secondary spring to a lighter one, otherwise with the spring it'll come with ( a black or brown one) the secondary's won't open til around 4-5000 rpms. A secondary spring kit is available at most speed shops and the large chain parts stores ( O'Reilly, Auto Zone, Advance Auto, etc)

Edelbrock 600 CFM Autochoke

what does 2v and 4v mean? 2 barrel, 4 barrel?

THX 138 said:

what does 2v and 4v mean? 2 barrel, 4 barrel?

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yup, V stands for ventricles if i remember right, which is a synonym for barrels

THX 138 said:

what does 2v and 4v mean? 2 barrel, 4 barrel?

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V = venturi. You will have either two or four with a V8. I have been very happy with my Edelbrock 600CFM carb. You could probably do well with a 500 is you're as stock as you say. But a 600 will run very nearly as well and prepare you for other performance stuff you might do later. Holley? I recently gave a box of them away. Guess I don't have the touch. Darned things just took more attention in my experience. The Edelbrocks are a lot simpler, though a bit less tuneable. It is a matter of preference. But if you want easy, out of the box "cool runnin's", then the small Edelbrocks are the way to go.

I agree with VictorII, for simplicity, the edelbrock's are the way to go over the Holley, IMO. No complaints on performace, either.

What's wrong with the Autolite 4100? If it's a stock motor, you shouldn't have need for any more, they're about one of the simpilest carbs there is and your car was designed for it. Thing is, I believe Pony Carbs is practically in your backyard, somewhere in New York state. Everyone that I've heard that's used them has been very pleased.

If you don't want your 4100, how about selling it to me for the cost of shipping? I'd like one to put back on my A-code 289 from my '65 coupe. I have a Holley 1850 on there now.

I have the Autolite 4100 and I love it. Very simple to adjust too! And it is kind of nice to know that it is an item that could have come as an option.

for simplicity and reliability you cant beat the 4100 autolite. i have used the edelbrock and the holley as well, and i keep going back to the autolite.

If you want a bolt on and go carb, you'll never realize the carb's full potential. There really is no such thing as a bolt on and go carb. The instuctions I posted earlier sound a little involved, but they really aren't. Only takes 30 minutes or so to insure that a Holley performs the way it's designed to. Most people skip the sec spring and as a result miss out on the secondary's. Also make sure there's a good inline fuel filter with it or any carb. Dirty fuel is the cause of any carb's failure to perform and why most think that you have to keep fiddling with the tuning to keep it running.