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Re: thermoquad VS. Holley 750 DP
[Re: ScottSmith_Harms]
#1031786
07/18/11 06:56 AM
07/18/11 06:56 AM
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Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan
I Live Here
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I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
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Quote:
I have a few of them stashed, finding parts to restore them with is murder so I've grabbed all I could find for a while, I find 10 850's for every 1000, both are scarce but the 1000's are getting rediculous!
I have a new "aftermarket" electric choke model I picked up at Englishtown swap meet several years ago =)
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Re: thermoquad VS. Holley 750 DP
[Re: theclutcher]
#1031788
07/18/11 09:47 AM
07/18/11 09:47 AM
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Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms
Mr Wizzard
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Mr Wizzard
Joined: Jan 2003
Posts: 42,714
Spokane Washington
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Quote:
I have a new "aftermarket" electric choke model I picked up at Englishtown swap meet several years ago =)
You must have 1 of these? Known as "Super Quads", these are not Competition series carbs but rather an over the counter "One size fits all" replacement. Good carbs but not considered to be anything like the Competition Series units.
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Re: thermoquad VS. Holley 750 DP
[Re: ScottSmith_Harms]
#1031789
07/18/11 12:10 PM
07/18/11 12:10 PM
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Joined: Jul 2010
Posts: 2,091
Delray beach, Florida
Performance Only
top fuel
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top fuel
Joined: Jul 2010
Posts: 2,091
Delray beach, Florida
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how come people are only willing to pay 5.00-25.00 dollars for good cores, yet when you see them advertised for sale everybody wants an arm and 4 legs for them and they're still just good cores? ("supposedly good cores anyway")
Last edited by Performance Only; 07/18/11 12:11 PM.
machine shop owner and engine builder
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Re: thermoquad VS. Holley 750 DP
[Re: dOc !]
#1031790
07/18/11 12:17 PM
07/18/11 12:17 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Quote:
not the best street manors.
 ....kind-of 'splains most Berri-Crabs .. 
Pig fat, fouling spark-plugs and the air, washing cyl walls .... SHALL I continue ? .. 
Then you need to get better at TUNING them!
I've had a number of 3310 Holley 750 vacuum secondary carbs on everything from a truck 360 to a mild performance 440 and they all peform really well with NONE of the above mentioned traits!
The 360 in my 4x4 powerwagon went from 9 mpg with the tiny 2 bbl. to 11-12 with the Holley. Not great but the thing weighs over 5,000 lbs. and is a full time 4x4. Starts instantly, no fouling, no problems.
The 440 in my '71 'Cuda got 13-14 mpg with a .528 MP cam, headers and Holley 750 on a regular basis. Not spectacular but it started instantly and had great all around performance.
The 318 with 360 heads that I built got 17-18 mpg with a .480 cam, single plane M1 intake, headers, etc. Again, not bad for the combo.
Doc can cry all day long about the Holley's but the simple fact is they are a great carb that is easy to tune and parts are as close as your local O'Reilly's or Autozone.
Thermoquads may have worked well back in the day but, as others here have pointed out, are quickly going the way of the dinosaur.
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Re: thermoquad VS. Holley 750 DP
#1031791
07/18/11 02:07 PM
07/18/11 02:07 PM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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Quote:
Doc can cry all day long about the Holley's but the simple fact is they are a great carb that is easy to tune and parts are as close as your local O'Reilly's or Autozone.
Thermoquads may have worked well back in the day but, as others here have pointed out, are quickly going the way of the dinosaur.
NO  ... gy .... all
...and using YURR logic about parts being more available ... you must be suggesting that we all turn-into Chebby guys ... 
...AND the Berri crab is in the same Garden-Grave(yard) as the Plastic Fantastic !
....A N D if the aftermarket gives-us a econ and dependable DPFI system ...NO ONE (in their right minds) ... will use any type of crab .... 
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Re: thermoquad VS. Holley 750 DP
[Re: dOc !]
#1031792
07/18/11 03:11 PM
07/18/11 03:11 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
....A N D if the aftermarket gives-us a econ and dependable DPFI system ...NO ONE (in their right minds) ...
will use any type of crab ....
As I mentioned in another post, the NASCAR boys are going to fuel injection next year and the hope is they will develop a system that is simple, works well, and is dead nuts reliable. If so, it may mean cheap FI for all of us!
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Re: thermoquad VS. Holley 750 DP
#1031794
07/18/11 03:41 PM
07/18/11 03:41 PM
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Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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Quote:
Quote:
Quote:
not the best street manors.
....kind-of 'splains most Berri-Crabs ..
Pig fat, fouling spark-plugs and the air, washing cyl walls .... SHALL I continue ? ..
Then you need to get better at TUNING them!
I've had a number of 3310 Holley 750 vacuum secondary carbs on everything from a truck 360 to a mild performance 440 and they all peform really well with NONE of the above mentioned traits!
The 360 in my 4x4 powerwagon went from 9 mpg with the tiny 2 bbl. to 11-12 with the Holley. Not great but the thing weighs over 5,000 lbs. and is a full time 4x4. Starts instantly, no fouling, no problems.
The 440 in my '71 'Cuda got 13-14 mpg with a .528 MP cam, headers and Holley 750 on a regular basis. Not spectacular but it started instantly and had great all around performance.
The 318 with 360 heads that I built got 17-18 mpg with a .480 cam, single plane M1 intake, headers, etc. Again, not bad for the combo.
Doc can cry all day long about the Holley's but the simple fact is they are a great carb that is easy to tune and parts are as close as your local O'Reilly's or Autozone.
Thermoquads may have worked well back in the day but, as others here have pointed out, are quickly going the way of the dinosaur.
All those MPG figures you gave really suck compared to stuff I have had with thermo-quads so I don't get what you are bragging about 
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: thermoquad VS. Holley 750 DP
[Re: HotRodDave]
#1031795
07/18/11 03:50 PM
07/18/11 03:50 PM
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Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
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super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
Quote:
Quote:
Quote:
not the best street manors.
....kind-of 'splains most Berri-Crabs ..
Pig fat, fouling spark-plugs and the air, washing cyl walls .... SHALL I continue ? ..
Then you need to get better at TUNING them!
I've had a number of 3310 Holley 750 vacuum secondary carbs on everything from a truck 360 to a mild performance 440 and they all peform really well with NONE of the above mentioned traits!
The 360 in my 4x4 powerwagon went from 9 mpg with the tiny 2 bbl. to 11-12 with the Holley. Not great but the thing weighs over 5,000 lbs. and is a full time 4x4. Starts instantly, no fouling, no problems.
The 440 in my '71 'Cuda got 13-14 mpg with a .528 MP cam, headers and Holley 750 on a regular basis. Not spectacular but it started instantly and had great all around performance.
The 318 with 360 heads that I built got 17-18 mpg with a .480 cam, single plane M1 intake, headers, etc. Again, not bad for the combo.
Doc can cry all day long about the Holley's but the simple fact is they are a great carb that is easy to tune and parts are as close as your local O'Reilly's or Autozone.
Thermoquads may have worked well back in the day but, as others here have pointed out, are quickly going the way of the dinosaur.
All those MPG figures you gave really suck compared to stuff I have had with thermo-quads so I don't get what you are bragging about
Half 2 agree with ya Dave, I do love my holleys no doubt, allways will, But 2 pair them up along with a TQ or QJ for gas mileage, The spreadbore will always win in that department propperly tuned of coarse.
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Re: thermoquad VS. Holley 750 DP
[Re: 68Bullit]
#1031797
07/18/11 04:39 PM
07/18/11 04:39 PM
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Joined: Jul 2010
Posts: 2,091
Delray beach, Florida
Performance Only
top fuel
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top fuel
Joined: Jul 2010
Posts: 2,091
Delray beach, Florida
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Quote:
Some claim they have run them on their cars and eventually replaced them but what does this really add up to????
it could mean a lot of different things. if your suggesting that they're so hard to tune and that's why most people give up on them, then either your right, and everybody but a select few people are just too stupid to tune them. or, perhaps people did learn how to tune them but were happier with something else.
MPG is nice for a daily driver, but 1-2 MPG on a hot street strip car or a bracket combo where a holley will run better just seems like a no brainer. as already mentioned, parts for holley's are everywhere. parts for the plastic fantastic, not so much. 
machine shop owner and engine builder
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Re: thermoquad VS. Holley 750 DP
[Re: Performance Only]
#1031798
07/18/11 05:03 PM
07/18/11 05:03 PM
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Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms
Mr Wizzard
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Mr Wizzard
Joined: Jan 2003
Posts: 42,714
Spokane Washington
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Quote:
how come people are only willing to pay 5.00-25.00 dollars for good cores, yet when you see them advertised for sale everybody wants an arm and 4 legs for them and they're still just good cores? ("supposedly good cores anyway")
What's important to note is which Thermo-Quads you are shopping for, they are not all valued the same. MOST of them are only worth around $25.00 as cores, however a few select TQ part #'s are quite rare/desirable/valuable and can be worth several hundred as cores, so you have to be sure you are comparing apples to oranges when it comes to asking prices.
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Re: thermoquad VS. Holley 750 DP
#1031799
07/18/11 05:20 PM
07/18/11 05:20 PM
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Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms
Mr Wizzard
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Mr Wizzard
Joined: Jan 2003
Posts: 42,714
Spokane Washington
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Quote:
Thermoquads may have worked well back in the day but, as others here have pointed out, are quickly going the way of the dinosaur.
Based on the business I have been receiving in the past year or two I totally disagree, if anything they are being rediscovered and their popularity is growing!
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Re: thermoquad VS. Holley 750 DP
[Re: theclutcher]
#1031802
07/18/11 05:58 PM
07/18/11 05:58 PM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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Quote:
Why not have the best of both worlds.
The spreadbore Holley 6210.
Now everyone can be happy,
not to mention it is a great carb... dbl pumper with 50 cc on secondary, tuneable with small primary.
holley 6210 650cfm dbl pumper spredbore on my 440
also have a holley 4010 duel feed 850 dbl pumper spredbore annular booster...kinda a holleybrock q-jet
holley = gas holes
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) had been the thing holding American cars down VS the imports...its not that American Workers could not make the same or better car as the foreign companies...its that the foreign companies used the 7 cent a washer/damper/NVH type damper made of RUBBER but the American companies said...we can use that 3 cent PLASTIC part...sure it will vibrate and rattle like hell after 5K miles...but it will work....Thats why the say Honda Civic was a bit MORE $$ and the Chevy Cavalier a bit less but the Civic FELT/SOUNDED/RODE/LASTED a TRILLION times better...they went the extra mile....
right on the HEAD. Yeah, RIGHT !! In fact, Riddle Me This: Most people take the time to know/tune a Holley quickly, but why is it that they "write" off a
