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"TQ is going to give you way better mileage around town."

how's that? the engine is going to pull the needed fuel amount reguardless of carb.

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The TQ takes a lot to tune and is absolutly no comparison to a DP Holley. I tried to run a TQ and succeeded but in the end the Holley won out hands down in Performance. When you are talking tenth's of a second I will now stick with Holley.
PS in mileage try a Q jet easy to tune and reliable and with Chrysler linkage from 1985 up to 1988

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If the holley won hands down in performance it means your TQ was WAY out of tune. I've had a 750DP and a TQ on the same engine and the difference was 11 mpg from the holley and 17 from the TQ around town.
Never saw any track times but the TQ had the holley by the butt dyno. And apart from that [and here's a name from the past] Ed Hamburger insisted that a TQ will have 2 tenths over a similar sized double pumper all day. As someone stated previously holley tend to cover up deficiencies in their design by making it rich, they CANNOT meter fuel properly at part throttle apart from all their other problems.

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Well goldy ....don't let them take-up ALL that shelf-space ... I will help-you get rid of them ...no problemO.

I might be rolling through on I-75 sooner than expected !

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You BETTER hurry, Doc!! I may BEAT you to his STASH!!

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I doubt you will see much differnce in MPG w/ a TQ. Unless your DP is way out of tune. Plus factor in you'll have to pay somebody to set it up then you have to figure how many miles you have to drive to make up any savings. Kind of like the fools that got rid of their paid for 20-22mpg cars to by a hybrid that gets 40's. How far would one need to drive to start saving money?

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Mr. Y, at the strip, HOLLEYS are the NORM.
Unless, you have a mild combo, in a LIGHT vehicle
the DP suffers from some mileage penalty. And you need to run a SMALLER one (650) at that. WHO would want better mileage out of a mega-displacement motor anyway! The beauty of the TQ, is that besides it's generous airflow ratings, it's VERY tunable!! AND it can be bolted on (provided you have a TQ flanged intake) on ANY MOPAR motor (except the 6's, and as we speak someone will make manifolds for them TOO, eventually) and still perform WELL!! Great for the
street and a SHOCKER on the STRIP!! Oh, did I forget to mention, it DOES get BETTER MILEAGE than the DP!! So does the 6 pack !!

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The TQ takes a lot to tune and is absolutly no comparison to a DP Holley. I tried to run a TQ and succeeded but in the end the Holley won out hands down in Performance. When you are talking tenth's of a second I will now stick with Holley.
PS in mileage try a Q jet easy to tune and reliable and with Chrysler linkage from 1985 up to 1988

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If the holley won hands down in performance it means your TQ was WAY out of tune. I've had a 750DP and a TQ on the same engine and the difference was 11 mpg from the holley and 17 from the TQ around town.
Never saw any track times but the TQ had the holley by the butt dyno. And apart from that [and here's a name from the past] Ed Hamburger insisted that a TQ will have 2 tenths over a similar sized double pumper all day. As someone stated previously holley tend to cover up deficiencies in their design by making it rich, they CANNOT meter fuel properly at part throttle apart from all their other problems.

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Then the holley was way out of tune. No way the TQ is going to get 6mpg better. And the TQ was probablt a 1050 vs a 750 at the track...

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Holley DP's perform best WIDE-OPEN. The trick to them is matching the jets/shooters/idle air bleeds to the style of driving vs engine vacuum. Half the time they are OUT of calibration. TQ's, however, depend on actual engine vacuum to operate the jets and secy
air doors (held by spring tension). There is NO way you can "undercarb" or "overcarb" your motor!
Jetting adjustment are easy and you can tune from maximum mileage/torque to "all-out" horsepower, and anything in between. Not to say Holley's cannot get good mileage, it's just that TQ's do it a LOT EASIER!!

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[quoteThink about that Holley for a second. Move the throttle and it opens primary and secondary bores with both accelerator pumps dumping fuel.
The TQ opens the primaries and if the draw is strong enough it will begin opening the secondaries and back off as the load is eased. The pump will shoot fuel but not to the degree of the Holley.
When I was playing with carbs I could normally get the best performance (butt dyno) out of a Holley. However, once tuned to performance the Holley was way behind the AFB and TQ when it came to street manners.
Since my cars are street cars I did not run Holley carbs for long.

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Holley DP will not achieve the mileage of a TQ but then again I don't want it for that I like to race and Holley is the winner hands down period When I go to test and tune I do justthat testing various combo's to see how they perform I realize it is not pure but when I do it I allow for weather changes etc.

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When I want to race, I go with fuel injection. It wins with my hands on a cold beverage. To tune it for atmospheric conditions all I do is turn the key and start the engine.

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The TQ opens the primaries and if the draw is strong enough it will begin opening the secondaries and back off as the load is eased. The pump will shoot fuel but not to the degree of the Holley.

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The TQ opens the primaries and if the draw is strong enough it will begin opening the secondaries and back off as the load is eased. The pump will shoot fuel but not to the degree of the Holley.

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Not true, The secondaries will not start (be able) to open untill at least 40% throttle. Same with a QJ.

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To a point. The air door IS adjustable!
When you have smaller, efficient, double venturi primaries working for you, there is a LOT of high velocity AIRFLOW going into the motor, more so than a Holley. Makes for a BETTER burn in the cylinders. The bigger secondary bores provide additional air/fuel flow to the already higher velocity primary jet stream. More torque!!

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Holley DP will not achieve the mileage of a TQ but then again I don't want it for that I like to race and Holley is the winner hands down period When I go to test and tune I do justthat testing various combo's to see how they perform I realize it is not pure but when I do it I allow for weather changes etc.

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When I want to race, I go with fuel injection. It wins with my hands on a cold beverage. To tune it for atmospheric conditions all I do is turn the key and start the engine.

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The TQ opens the primaries and if the draw is strong enough it will begin opening the secondaries and back off as the load is eased. The pump will shoot fuel but not to the degree of the Holley.

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Not true, The secondaries will not start (be able) to open untill at least 40% throttle. Same with a QJ.

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To a point. The air door IS adjustable!
When you have smaller, efficient, double venturi primaries working for you, there is a LOT of high velocity AIRFLOW going into the motor, more so than a Holley. Makes for a BETTER burn in the cylinders. The bigger secondary bores provide additional air/fuel flow to the already higher velocity primary jet stream. More torque!!

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Not talking about the air door, alot of what your saying has nothing to do with what i said , not trying too be a jerk, just saying.

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if the thermoquad is really so much better than a holley carb in fuel economy for the daily driver and also performance on the track, what would the reason be that so many people prefer something other than a thermoquad? surely there must be a reason that 99% of people choose something else isn't there? can that many people be wrong?

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