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  #16 (permalink)  
Old 08-25-2012, 05:03 PM
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It will smoothen out when I accelerate, but at idle it is crappy, still wondering if I should just give up on this carb.
You all think it's best to use it for parts? or get it professional help?

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Old 08-25-2012, 05:06 PM
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Quote:
Originally Posted by JeffB View Post
Print this and save it: http://www.mymopar.com/downloads/carterafbtuning.pdf one of the first things you might try as you don't need to go into the Carb is changing the pump shot,check out that section first.
I have this stuff already and been through it and through it. I do Thank You, maybe I should reread it?
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Old 08-25-2012, 07:06 PM
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Quote:
Originally Posted by RWENUTS View Post
Spreadbore intake and squarebore carb. What do you have for a gasket between carb and intake?
Bump your timing up to 12*.
Bump it up to 12* BTDC?
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Old 08-25-2012, 08:57 PM
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Yes!
Make sure you plug off the vacuum to your vacuum advance.
With that short tab on your timing cover another way to set the timing is with a dial back to zero timing light.
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Old 08-25-2012, 09:14 PM
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I'll give it a try, so you think my issues is the timing? I had somone say they thought I had it to far advanced. Might be the cam.
It's a Comp Cam CL-51-221-4, I was told to run it at stock timing.
Thank you
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Old 08-25-2012, 09:16 PM
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ok, well sounds like to me your haveing fuels issues,, first of all make shure your getting plenty of it,, if that,s good,, you may have other part,s that r given you the problem,, poping out the exhaust usually means it,s goin to be a fireing problem,, recheck all your plug gap,s make shure thay r all set to spec,s make shure all your distributor component,s r good and you r getting plenty of spark,, timeing can also cause these problem,s,, most sbc set at 10 befor tdc,,
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Old 08-25-2012, 09:34 PM
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Quote:
Originally Posted by s10mikey View Post
ok, well sounds like to me your haveing fuels issues,, first of all make shure your getting plenty of it,, if that,s good,, you may have other part,s that r given you the problem,, poping out the exhaust usually means it,s goin to be a fireing problem,, recheck all your plug gap,s make shure thay r all set to spec,s make shure all your distributor component,s r good and you r getting plenty of spark,, timeing can also cause these problem,s,, most sbc set at 10 befor tdc,,
It's not a SBC, it's a 67 326 Pontiac, the ignition was just converted to a ingitor conversion, I had a 3721SA carb on there, it runs good, very slight miss, no popping, but could be spark plugs or I have to use universal wires 7mm.
The fuel pump is new and a high performance pump, I installed a holley pressure regulator on it, all is new.
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Old 08-26-2012, 02:39 PM
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Quote:
Originally Posted by raguza123 View Post
I don't think the pump shot would make it idle like crap, it idle has a miss and sputter out of the exhaust, and smells rich, I have to backout the mixture screws to 4 turns so it'll idle with less sputtering amd misses.
I tried carb cleaner around the base, all vac connections and the ones with plugs in them. no idle change.
Just a lot of sputtering, won't even think of road testing, but acceleration has no lag.
I am just puzzled
I buy and sell carbs to fund my project,after selling a 9635S to a guy he emailed me back with a similar problem I told him to shorten the pump stroke and it cured it for him,did you try it? Have you made any changes to the primary jetting? Also since you made a cam change you may want to try using a lighter stepup rod spring:http://www.summitracing.com/parts/EDL-1464/ as the Carter and Edelbrocks can be sensitive to a rougher than stock idle which cause the metering rods to "bounce" this will cause a rich condition and erratic idle.

Last edited by JeffB; 08-26-2012 at 02:54 PM.
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  #24 (permalink)  
Old 08-26-2012, 03:49 PM
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Quote:
Originally Posted by JeffB View Post
I buy and sell carbs to fund my project,after selling a 9635S to a guy he emailed me back with a similar problem I told him to shorten the pump stroke and it cured it for him,did you try it? Have you made any changes to the primary jetting? Also since you made a cam change you may want to try using a lighter stepup rod spring:Edelbrock 1464 - Edelbrock Performer Step-Up Spring Kits - Overview - SummitRacing.com as the Carter and Edelbrocks can be sensitive to a rougher than stock idle which cause the metering rods to "bounce" this will cause a rich condition and erratic idle.
My Cam is a Comp Cams CL51-221-4, hasn't been changed at all, I run it at stock timing 6* BTDC, it was suggested to run it at 12* BTDC from a member here. this carb has always been an issue, I can get others to run but this one baffles me.
It's Primaries are .100 and sec. .095 and the rods are 70x47 and if I put in 75x47 it'll run a little better. She sputters and surges and misses like I have a vac leak, I've sprayed everything I can see and no rise in rpms
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Old 08-27-2012, 11:07 AM
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I was using my timing light as the car was heating up to full temp, when she got to full temp, my light wasn't flashing consitently, it would flash then not then flash. I'm gonna test it on my 02 ranger see if it's the light and if it works, then it's the pertronix conversion kit.
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