Another new Q-jet?

[Bonnewagon]

I stumbled across this new brand at Summit. Anyone know about these? https://www.summitracing.com/parts/pqx-4228351

PRW Q-Jet Carburetors


PRW Q-Jet carburetors are manufactured with all new components. They are a significant upgrade to stock GM carburetors for most GM automotive applications. Every carburetor is designed with precision engineering and cutting-edge features and are equipped with PRW's industry first lean/rich adjustment allowing 15% +/- main circuit adjustment to allow for precise tuning with ease. They are available for 650 and 695 cfm applications for GM cars and trucks with engine sizes ranging from 283-350 cu. in. and 695 cfm for GM vehicles with engine sizes ranging from 350-455 cu. in.—both applications work well with a mild cam or headers for optimum street performance. Choose the PRW Q-Jet carburetor designed for your application needs.

Key features:

* All new—not rebuilt, or remanufactured
* Available for 650 and 695 cfm applications
* Industry first Lean/Rich adjustment allowing up to 15% +/- main circuit adjustment to allow for precise tuning with ease
* Universal replacement for most GM automotive applications
* Includes most required vacuum ports
* Complete with a one-wire electric choke
* Locally assembled and run-tested, with all gaskets, metering rods, jets and air bleeds made in the USA
* Compatible with "C" and "U" style throttle linkages suitable for stock intake manifolds

 

[69hurstolds]

Probably made out of the same Chinesium cookie batter.

 

[Bonnewagon]

It claims to be made in USA.

 

[69hurstolds]

"locally assembled" means something different to me. But if it actually works, I'm all for it.

 

[Clone TIE Pilot]

Here is what Cliff Ruggles says about these.

https://cliffshighperformance.com/simplemachinesforum/index.php/topic,4886.0.html

I just had one come in here, purchased locally to feed a Chevy 350 crate engine making 290hp.

All I can tell you guys is that they copied a 1979-80 Chevy truck carb, and did NOT make the needed changes to make it work correctly or user friendly.

Right to start with NO ONE wants the charcoal canister 3/8" vent in the front, and when you have E-choke the fresh air supply tube in the rear of the airhorn is NOT needed.

The rear pull-off doing both functions is not a good set-up either. They should have used the front pull-off model instead.

The parts they used are horrible, especially the accl pump, so plan on upgrading them.

Internally they have screw in IFR's and a few other mods to make them easier to tune, but overall it's not close enough out of the box for the average hobbyist to work with.

I also had one of the early divorced choke models come in and it took me three tries to get it dialed in for the heavy cammed 406 SBC on the customers Chevelle.

I'm with Lars on these carbs, you'd be a lot further ahead to just buy a nice original core and build your own......FWIW.....

 

[86LK]

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[pagrunt]

My Holley 4175 is 650 carb, a new one does cost more (was about $200 back in '99) but I'd rather have it to be honest. Be cheaper to rebuild a good core & have it tuned to what you need. Hell, I got 3 good cores (one might be an older rebuild that is ready to go) that cost me less than $25 for them all.

 

[Bonnewagon]

Here is what Cliff Ruggles says about these.

It says I am banned?!? How did they find out?

 

[Bonnewagon]

"locally assembled" means something different to me.

That reminds me of the cylinder head I bought for the Jeep. My guy said that the Chinese make great castings. But they suck at machine work. He said he would get the head but do the final machine work himself. This carb may be a similar scenario.