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#39155 10/29/2004 7:47 PM | Joined: Oct 2004 Posts: 175 Member | | Member Joined: Oct 2004 Posts: 175 | I have owned my truck for just about one year now, and while progress has been slow, it has also been fairly steady. When I got it the original monojet on the Chevy 250 was toast. The auto choke was gone, and it had some other problems. Cold startin sucked! I replaced the carb with a napa remanufactured monojet with manual choke. It turns out that they gave me the larger 292 carb. It had a good cold start, but you had to let it warm up for about 5-10 minutes before driving. It worked good in general, idled smooth, had good acceleration, and got 16 mpg on the hiway. My only real complaint was that it stumbled a little (had a "dead spot")just off an idle.
I ran the Monojet a short time then heard rave reviews about the Holley / weber 5200. I bought a weber and an adapter from Langdon's Stovebolt. It did nothing for performance or gas milage. The only real improvement is a really smooth low end, and incredibley good cold starting and driving. I have never been able to get it to consistently idle smooth and I hate the ugly freakin' adapter.
SO, I'm getting read to rebuild the 250, including mild cam, port work, mill the head, and 1.6 exhaust valves. I am also going to work the stock intake and exhaust manifolds over so they match the ports on the head, et. I want to use the biggest and best one barrel I can. I love the elegant look and the simplicity! However, I am having a hard time finding good info on one barrel carbs; ie, ventura size, flow rating, et.
Now, here's my real question: What is the best one barrel for my application, and why do you say it is the best?
Thanks, Boo
-------------------- If it's to loud, you're to old!
We don't need no stinking V-8s!!
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#39156 10/30/2004 12:17 AM | Joined: Mar 2002 Posts: 553 Shop Shark | | Shop Shark Joined: Mar 2002 Posts: 553 | You never mentioned what kind of truck you have. :confused: | | |
#39157 10/30/2004 2:54 AM | Joined: Jan 2000 Posts: 1,586 Extreme Gabster | | Extreme Gabster Joined: Jan 2000 Posts: 1,586 | If you're modifing the engine as you say,it's gonna be beyond any readily available single barrel carb.The Holley 5200 flows more than any single barrel,about 200 cfm,and you say it wasn't enough on a stocker,so.......... | | |
#39158 10/30/2004 8:11 AM | Joined: Oct 2004 Posts: 175 Member | | Member Joined: Oct 2004 Posts: 175 | What about the Carter YF? Are those carbs any good, and is it a direct bolt on, ie, will it use the same linkage as a Monojet? I have a 425 CFM Rochester 4GC off a 1962 283 I could use, but I'm skeptical about spending $180 or more for a good manifold when I think it may be to much carburetor for a mildly built 250. I would like to keep things simple. I fish and hunt in places where, trust me, there ain't no hot rod parts to be found Boo
We don't need no stinking V-8s!!
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#39159 10/31/2004 5:18 AM | Joined: Oct 2004 Posts: 5 Junior Member | | Junior Member Joined: Oct 2004 Posts: 5 | Well, If I were in your situation, I'd be shopping eBay. There is always plenty of intakes and/or carbs there, and usually fairly cheap. Good luck | | |
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