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Author Topic:   Ditched the Demon

Posts: 2468
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99

posted 09-26-2001 11:46 PM     Click Here to See the Profile for kcode   Click Here to Email kcode     Edit/Delete Message   Reply w/Quote
I tried for three days the get the BG Road Demon to run on my 347. Extremely rich at idle, black smoke bad. I called Barry Grant and tried everthing they suggested. Turns out the Idle circuitry will not pass sufficient air, only fuel. As last resort they wanted me to drill out the air passages in the venturi area. I said no deal. I needed a carb today, I'm leaving for Atlanta tomorrow morning. You cannot buy a Holley in the city that makes them. No one carries anything other than the 1850. Any way, a relatively new company, Quick Fuel, is here in Bowling Green. I stopped there and found out that I new the owner, three ex-Holley designers and Engineers. Two hours later they had custom built a new 750 double pumper, guaranteed to work, and it did. So far. Talk about service, but it does come with a price. They use Pro-form bodies, their own design metering blocks and baseplates and the traditional Holley fuel bowls. I don't have their phone number handy, but will post when I get back Sunday.


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Posts: 834
From: Charlotte NC usa
Registered: Apr 2001

posted 09-27-2001 06:56 PM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
My local speed shop just quit carrying Demon carbs. Said that too many "Holley guys" had trouble with them. Curious.
The magazines love those Demon carbs ( and advertising dollars)though.

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Posts: 1367
From: Spencer, WV
Registered: Jan 2001

posted 09-28-2001 06:44 AM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
My 750 Speed Demon didn't work right until I upped the factory jetting up 4-5 sizes both front and back. It seemed to need more jet than a Holley, size for size. I believe it's 79/87 right now. Go figure...

Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3

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