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Old 03-21-2007, 12:27 AM   #1
72step
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UPDATE!!--Quick Fuel Carb after defective BG Demon

I posted weekend before last about what junk BG Demon Carbs are after I got two in a row defective brand new Demon Carbs from Jegs. By the way, Jegs has great customer service. They never asked a question on any of my returns.
Well, I returned the 2nd defective Speed Demon 650 and decided on a 650 Mech, Quick Fuel Q-Series which has a Proform main body, and is basically a modified Holley Ultra HP, and is more of a performance carb. To make a long story short, I installed the QuickFuel out of the box and it's running just as good if not better than the first Demon I got which ran good but leaked gas. This carb I haven't even touched with the screwdriver, and it ran better than that first Demon and that Demon I spent some time on tuning it in. The QuickFuel seems to be a little meaner, and that's with the Vacuum from my tranny disconnected because I need a longer piece of vacuum hose so it was idling kinda funny. The QuickFuel carbs are engine tested and it shows cuz everything is pretty much on. Of course I'll probably fine tune the idle mixture, but the floats are good. Oh, and the red billet metering blocks and baseplate look real sharp! All I can say is I'm a happy camper with the Q-Series, and Jegs has 100% Customer Satisfaction and I can atest to that!!

Last edited by 72step; 03-21-2007 at 12:30 AM.
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Old 03-21-2007, 12:46 AM   #2
RACINJASON22
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Re: UPDATE!!--Quick Fuel Carb after defective BG Demon

Isn't it so much nicer when something goes right for a change. Glad to hear it. RJ22
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Old 03-21-2007, 02:28 AM   #3
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Re: UPDATE!!--Quick Fuel Carb after defective BG Demon

cool deal man, nice to hear the trucks running good, now you just need to put up some pictures cause you know how this board works...hahaha
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Old 03-21-2007, 07:19 AM   #4
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Re: UPDATE!!--Quick Fuel Carb after defective BG Demon

Did you get a mechanical or vac secondary carb?
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Old 03-21-2007, 08:26 AM   #5
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Re: UPDATE!!--Quick Fuel Carb after defective BG Demon

I also run a quick fuel carb on my BB454. I had it about two years and have no problems at all. Good Luck with yours.
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Old 03-21-2007, 07:11 PM   #6
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Re: UPDATE!!--Quick Fuel Carb after defective BG Demon

A friend of mine had a bad experience with his Annular Booster Demon Carb. It had a machining burr left in one of the main jets (sloppy Quality Control). He discovered it when testing his 454 Corvette on the Chassis dyno. Picked up almost 100 HP when the day was done, most of which was attributable to the machining defect.

As far as the carb design is concerned, I hear it's a killer.

Personally, I prefer Holleys. I have a 770 CFM Street Avenger atop my 70 Elky's 454 and a 750 DP atop my 69 C-10's 454. Love them both.
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Old 03-21-2007, 07:20 PM   #7
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Re: UPDATE!!--Quick Fuel Carb after defective BG Demon

Can we see some pics of the new carb installed?
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Old 03-21-2007, 07:28 PM   #8
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Re: UPDATE!!--Quick Fuel Carb after defective BG Demon

You get to see the integrity of a company in how they handle problems. It's then that the good ones are separated from the bad ones.
Glad to hear everything turned out alright.
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Old 03-21-2007, 09:50 PM   #9
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Re: UPDATE!!--Quick Fuel Carb after defective BG Demon

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Old 03-21-2007, 10:15 PM   #10
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Re: UPDATE!!--Quick Fuel Carb after defective BG Demon

Thanks for the comments. It's mechanical. I'll post pics tomorrow. I'll have my wife do it for me because I just got surgery for carpal tunnel. So yes the wife is responding for me.
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