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Re: A thermoquad off my 74 Duster 360
[Re: ademon]
#897746
01/06/11 03:12 PM
01/06/11 03:12 PM
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Joined: Jan 2003
Posts: 5,270 Missouri
MY340
master
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master
Joined: Jan 2003
Posts: 5,270
Missouri
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1974 360 TQ's were actually the same cfm as the 400 and 440 carbs. They were rated at 850cfm by Carter with 1-1/2" primaries instead of the smaller 800 cfm 340 carbs with 1-3/8" primaries.
The carb with some minor tuning will work well on a mild 440.
1970 FE5 Duster 360/904/3.91's SOLD
1973 TB3 SpaceDuster 340/4spd/4.10's SOLD
Moparless for now but when the opportunity is right I'll have another one.
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Re: A thermoquad off my 74 Duster 360
[Re: MY340]
#897747
01/06/11 04:44 PM
01/06/11 04:44 PM
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Joined: Oct 2004
Posts: 601 Clintwood VA
johnedod
mopar
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mopar
Joined: Oct 2004
Posts: 601
Clintwood VA
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I'm running a tq that according to the numbers is a 73 340 carb on my 440 now. Runs great!
Johnedod 68 Road Runner 71 Road Runner 78 Power Wagon
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Re: A thermoquad off my 74 Duster 360
[Re: gomangoRTSE]
#897748
01/06/11 08:58 PM
01/06/11 08:58 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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iirc 1&3/8" pri is 800 & 1&1/2" is 850 but I think carb CFM ratings can be a little bit misleading. I think either one would work fine for you and they tend to be problematic so if you have a good one take adv of your good fortune & run it!.
live every 24 hour block of time like it's your last day on earth
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Re: A thermoquad off my 74 Duster 360
[Re: ScottSmith_Harms]
#897750
01/07/11 08:34 AM
01/07/11 08:34 AM
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Joined: Feb 2003
Posts: 607 NY
old340dog
mopar
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mopar
Joined: Feb 2003
Posts: 607
NY
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I've been looking for a aftermarket intake manifold to use with a Thermoquad on my 340. And there isn't much of a selection without having to using spacers etc. (Which I don't want to do because of hood clearance problems). Looks like there is also a problem with trying to use the choke setup on the TQ with a aftermarket intake. Any ideas or suggestions?
old340dog
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Re: A thermoquad off my 74 Duster 360
[Re: gomangoRTSE]
#897753
01/09/11 08:07 PM
01/09/11 08:07 PM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Quote:
I was wondering myself about hood clearance with the Thermoquad. I assumed with the Holley Street Dominator there would be no issue, however as with other carbs, I would image there would be clearance issues with the Edelbrock Performer RPM??
Even moreso of an issue with the RPM because you'd need to run an adapter plate to use it with the tquad.
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