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Post by chris426 on Mar 14, 2006 0:47:39 GMT -5
ok what kind of rochester should i run on my 318? what year, model, and what size engine? i run headers with 4:56 gears should i get one for a 305 or 350? about what year?
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Post by chryslerfat on Mar 14, 2006 8:35:06 GMT -5
One from the mid70s you can re-jet it as needed.
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Post by dadicted on Mar 14, 2006 9:21:56 GMT -5
definatly one from the mid 70s. i got one from shorty. all i have to do is just put a rebuild kit in it.
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Post by chris426 on Mar 14, 2006 10:28:17 GMT -5
like what size??? the smaller ones for the 305s? or the little bit bigger ones for like the 350s and all?
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Post by dadicted on Mar 14, 2006 17:26:04 GMT -5
well they will go 2 and 4brls, i would get a 2brl and do a little fabbing w/ the choke and u will get almost as much power as the 4brl would give u and it wont get ur engion as hot. u could just take the one u have and get it rebuilt, but if its on warranty i would just get a replacement. u can do that every yr if u go to a bigenough place w/ carbs and starters.
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Post by chris426 on Mar 15, 2006 0:29:13 GMT -5
yeah i got the 318 carb, but i can exchange it for the chevy carb, i mean would it be better to get the 2bbl for a 350 or the 2bbl for a 305??
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Post by dadicted on Mar 15, 2006 10:58:57 GMT -5
i dont think that there is any diffrences in the carb, might as well get the 350 when they ask. aslong as it will bolt up then i think that it will be fine. i used a ford carb that came off a ford 400 engion and it worked great.
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Post by chris426 on Mar 15, 2006 17:01:10 GMT -5
i looked at one off a 350, and it looks a little bigger than a 305 carb, is the rochester dualjet better or the 2g?
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Post by dadicted on Mar 15, 2006 19:51:02 GMT -5
i guess i dont know that. that is to much indepth for me. oh well. i dont know if it matters or not. ask the guy ur buying it from, which one has the better choke setup and runs cooler. what i would do is try to find a rubber hose that will fit over the top of the carb where the air cooler would go, then run the hose inside the drivers compartment. it will feed the engion cooler air, keep it cooler longer, and give u more power.
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Post by chris426 on Mar 15, 2006 22:13:35 GMT -5
air cooler??? huh?>
actually i'm buying it from myself, well kinda, i work for the parts store, i could order both of em, and look at em, and get whichever one i like
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Post by dadicted on Mar 16, 2006 13:53:40 GMT -5
that works too.
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Post by dadicted on Mar 16, 2006 14:53:04 GMT -5
this is what im talkingabout.  |
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Post by dadicted on Mar 16, 2006 14:54:10 GMT -5
they screw that to the top of the carb then attach some type of hose to the side hole and run it into the car so it gets cooler air and will give ur motor more power and keep it cooler longer.
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Post by chryslerfat on Mar 16, 2006 22:02:11 GMT -5
The dualjet is like a q-jet I would recommend that you get one for an older motor as the q-jet has issues of the mixture control sticking when hitting hard and loading up.
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Post by chris426 on Mar 17, 2006 0:30:17 GMT -5
i'm probably gonna get one for a late 60's 350 or 327
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Post by chryslerfat on Mar 17, 2006 7:03:17 GMT -5
The one you want is like 73 to 76 the ones from the late 60s are a smaller cfm and will starve the motor.
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Post by wagonkiller on Mar 17, 2006 7:43:15 GMT -5
ok guys rochester 101.
You need a carb for 283-307 late 60's early 70's plenty of fuel and DIRECT bolt on for 318,no adaptor needed.The 305 350 and 400,GM 2bbl carbs will DIRECT bolt on 360,383.400 chrysler.Mind you you will have to take into consideration what mounting gasket to use,to make sure that you will have no vacuum leaks,and all the vacuum ports work that you will need.
As for the quadrajet 4 bbls spreadbores and thermoquad spreadbore 4bbls they should interchange,same gasket considerations.
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Post by chris426 on Mar 18, 2006 0:31:56 GMT -5
which would be the best?? i have a 360 2bbl intake sitting on the shelf collecting dust
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Post by dadicted on Mar 18, 2006 16:59:53 GMT -5
i guess i cant help u on that one chris. i dont know enough about motors to beable to tell u the pros and cons of both. i would think that i would look at the price of both carbs. whichever one is the cheapest go w/, but figure that if u put the 360 intake on u will also have to buy gaskets so if the 305,307 carb isnt that much more expensive i would just save the time and heart ach and use that one.
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Post by chris426 on Mar 19, 2006 12:14:54 GMT -5
do you put ice or anything in that aircooler??
the one for a smaller cube motor is less expensive i think
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Post by dadicted on Mar 19, 2006 13:24:12 GMT -5
no u dont have to have ice or anything, u just run the line inside the car and the air on the inside of the car is cooler then what is under the hood. if u want to u might be able to rig up some type of ice cooler or something, but u could run into problems w/ water comming into ur carb if u use ice.
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Post by stris141 on Mar 19, 2006 16:49:46 GMT -5
I use to do something like Matt has. I use to cut the very end of the aircleaner horn off, and run a heater vent duct on it, to a hole cut in the firwall. If I could, I'd cut the hole where the outside air intake was, instead of going all the way into the inside of car. It sucked in cooler air. Worked pretty good.
Steve
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Post by chris426 on Mar 19, 2006 23:59:41 GMT -5
kinda like a cool air intake, i got a cool air induction that will fit a 4bbl carb, and get a 2bbl air cleaner adapter for that.
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Post by dadicted on Mar 20, 2006 11:10:40 GMT -5
sounds like it will work to me chris.
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Post by badboy23 on Mar 23, 2006 21:49:08 GMT -5
just call gropp automotive. he set me up just fine. no complaints. just one less thing to worry about.
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Post by Shorty Thompson on May 7, 2006 8:50:41 GMT -5
which would be the best?? i have a 360 2bbl intake sitting on the shelf collecting dust The intake off the 360 will be better than a 4bbl , , also would be better than a 2bbl off a 318 . Why ? The runners are bigger . You'll have to do a port matching on the heads , but it's worth it . As for the carbs to motors question . Grab a 2bbl Roch. off a truck . They'll flow the better cfm. |
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