Qf 750 hr - Chevelle Tech
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post #1 of 3 (permalink) Old Dec 29th, 14, 10:59 AM Thread Starter
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Jared
 
Join Date: May 2004
Location: Winnipeg, MB, Canada
Posts: 262
Qf 750 hr

I am looking at getting mechanical QF 750 HR series carb, just wondering on the experience you guys have had with them and if it would be a good addition for my 383?

Here's the link with my engine specs

https://www.chevelles.com/forums/showthread.php?t=694370


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1967 Chevelle Malibu(undergoing frame off resto)
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post #2 of 3 (permalink) Old Dec 29th, 14, 4:29 PM
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Greg.
 
Join Date: Apr 2011
Location: Ottawa, On, Canada
Posts: 4,722
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Re: Qf 750 hr

Jared, I would and will be buying a new type of Qjet from Demon/Holley;

MY Post on TC https://www.chevelles.com/forums/showthread.php?t=563850

Look at the 2 videos on JEGs site
plus this You Tube one http://youtu.be/HoR0uZLBJp0 RE: adjustment required before bolting onto Intake

http://www.jegs.com/p/Demon-Carburet...75515/10002/-1

for the best fuel economy the 625 cfm # 333-1901
or
for a little more performance the 750 cfm # 333-1904

they have "Dual mounting bolt pattern (square bore or spread bore) fits any street 4-barrel intake manifold"

67 Chevelle Malibu SS Cdn
Born 283 / PG / A51
468/TH400 2,500 stall/ S60 3.70 Gs
Prev Best on M/T ET S/S #3454 street Tires/Dress 2018/05/20
60' = 1.664
1/8 = 7.532 et / 91 mph
1/4 = 11.814 et / 115 mph
NEW Best with 3,500+ Stall TC 2019/09/08
60' = 1.547
1/8 = 7.311 et / 91.76 mph
1/4 = 11.595 et / 114.28 mph


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post #3 of 3 (permalink) Old Dec 29th, 14, 10:45 PM Thread Starter
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Jared
 
Join Date: May 2004
Location: Winnipeg, MB, Canada
Posts: 262
Re: Qf 750 hr

Thanks I'll keep those options open. I do have an older style qjet sitting around that I don't know much about but was wondering on the 750 QF cause I may be able to get it for a decent price


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