CK5
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Q-jet
- Thread starter K5Buckeye
- Start date
Burt4x4
1 Ton First Gen
Naa not for a Qjet. you have small primaries and FAT secondarys.
I am running an Edelbrock 1901 Q-Jet. Have had it on my 350 for 5+ yrs now and it's been great!! I got it at Summit fer 350...
72K5
Led Zeppelin
Rock ON!
<a target="_blank" href=http://www.geocities.com/baja/5099>www.geocities.com/baja/5099</a>
I am running an Edelbrock 1901 Q-Jet. Have had it on my 350 for 5+ yrs now and it's been great!! I got it at Summit fer 350...
72K5
<a target="_blank" href=http://www.geocities.com/baja/5099>www.geocities.com/baja/5099</a>
Blazer1970
1/2 ton status
Basically all Q-Jets are 750 CFM. GM used them on about 10 million 350s, so I would say they work OK. The way the secondaries operate on a Q-Jet, they only supply air/fuel per engine demand. This is different from a Holley etc.
Tim
70 Blazer CST 4X4 350 SM465 NP205
87 Burb 4X4 350
01 GMC 2500HD 4X4 Duramax/Allison
Tim
70 Blazer CST 4X4 350 SM465 NP205
87 Burb 4X4 350
01 GMC 2500HD 4X4 Duramax/Allison
arq
1/2 ton status
I just got the EDL-1901 Q-Jet, i love it. do a search on carbs and you'll find more info. what convinced me was the heat problem with the 1400series. 1900series is the way to go.
ARQ.
1-72 4x4 CST Blazer
2-71 4x4 CST Blazer
ARQ.
1-72 4x4 CST Blazer
2-71 4x4 CST Blazer
Thanks dudes! I was just comparing the q-jet to the 750 DP on my Chevelle 396. Guess it wasn't apples to apples. As you can see, I'm not too versed when it comes to motors and stuff. I kind of plug and chug, ask questions later. But not this time!!
1972 K5
1991 Jimmy
1972 K5
1991 Jimmy
Steve_Chin
1/2 ton status
The easy way to tell the 750 CFM Quadrajets from the 800s is to look in the primary sections. The 800s either have the second booster rings milled out of them or have larger main venturi in them. The larger main venturi are characterized by a couple of "bumps" below them (visible if you look up through the throttle body), where the 750s are smooth. One can take an 800 CFM carburetor and mill the second set of booster rings out to achieve about 860 CFM and more massaging can get a Quadrajet well over 900 CFM. The strange thing I have found is that most of the Chevies seem to have 750s on them and later Pontiacs (after '75) have 800s on them.
Also it is good to remember that while the carb is rated at 750 or 795 cfm many do not flow that much. I know my Monte carlo had a supposed 750 cfm q-jet stock but in reality it flows somewhere around 560 I believe
Chris =)
I think the exhaust fumes have finally gotten to me!!
Chris =)
I think the exhaust fumes have finally gotten to me!!
