View Full Version : Barry Grant Carbs
muscle
08-27-2007, 06:18 AM
I have a mild built, 454 in my 57 Chevy, I wondered if anyone here has used the Barry grant Speed Demons Carbs, I just bought a Barry grant 850 Speed Demon for my 454.
Thanks
Otis
r66ss
08-29-2007, 01:48 PM
I have a mild built, 454 in my 57 Chevy, I wondered if anyone here has used the Barry grant Speed Demons Carbs, I just bought a Barry grant 850 Speed Demon for my 454.
Thanks
Otis
Hi Otis
I Finally ventured over here from www.tri-5.com, Nice carb, they use lots of fuel :D I'm running a mighty demon on my chevelle. no problems at all, real responsive, easy to tune , they also run, I'll call FAT! So ya might have to adjust jet's , depends on your motor and combo !
Good luck, and see you @ tr-5.com
Randy/r66ss
buddyepa
11-21-2007, 12:02 PM
My experience with Demon carbs is mixed. Based on what they told me, a small 525 cfm Street Demon was said to be suitable for my 327 ci '65 Vette. The first one I got leaked gas like a seive from the sight ports. The second one didn't leak but performed very poorly. No power, lag in acceleration, just bad. The company got to where they wouldn't answer my email inquiries so I must say that their tech assistance was very poor. I studied the specs and found that the only difference I could see between the 525 and 600 cfm carbs was the diameter of the primary jets. I changed from 0.058 to 0.070 jets and the thing now performs well on my stepson's mild 350 ci egine. As for me, I went with an Edlebrock which worked perfectly right out of the box.
The demon is a nice piece, but their tech assistance sucked (for me).
:mad: :confused:
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